OPERATING SEGMENTS [Abstract] OPERATING SEGMENTS [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Business Segments [Axis] Business Segments [Axis] Segment [Domain] Segment [Domain] Business to Business Products Reportable Segment [Member] Retail and Wholesale Products Retail and Wholesale Segment [Member] Retail and Wholesale Segment [Member] Unallocated Assets Unallocated Amount to Segment [Member] Segment Reporting Information Segment Reporting Information [Line Items] Assets Assets Segment Net Sales Segment Reporting Information, Revenue for Reportable Segment Net Sales Sales Revenue, Goods, Net Income from Operations Segment Reporting Information, Operating Income for Reportable Segment Segment Reporting Information, Operating Income for Reportable Segment Corporate Expenses Corporate Expenses The corporate expenses line represents certain unallocated expenses, including primarily salaries, wages and benefits, purchased services, rent, utilities and depreciation and amortization associated with corporate functions such as research and development, information systems, finance, legal, human resources and customer service. Corporate expenses also include the annual incentive plan bonus accrual. Capacity Rationalization Charges Restructuring Charges Income from Operations Operating Income (Loss) Total Other Expense, Net Nonoperating Income (Expense) Income before Income Taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income Taxes Income Tax Expense (Benefit) Net Income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] Statement [Table] Statement [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Statement Statement [Line Items] Maximum maturity of cash equivalents CashEquivalentsOriginalMaturityMaximum The maximum number of months for the original maturity of a financial instrument to be classified as a cash equivalent. Inventory obsolescence reserves Inventory Valuation Reserves Amortization period of intangible assets (years) Finite-Lived Intangible Asset, Useful Life Stripping costs Stripping costs Cost incurred during the process of removing the overburden from the mine site, thus exposing the sorbent mineral. Pre-production overburden removal costs Pre-production overburden removal costs Cost incurred during the process of removing the overburden from a new mine site prior to the start of production. Land Land Mineral rights Mineral Rights Prepaid royalties Prepaid Royalties Pre-production development costs Pre-production development costs Costs incurred to develop a new mine prior to the start of production. Advertising expense Marketing and Advertising Expense Shipping and handling costs Shipping, Handling and Transportation Costs Research and development costs Research and Development Expense SPECIAL CHARGES [Abstract] SPECIAL CHARGES [Abstract] Restructuring and Related Activities Disclosure [Text Block] Restructuring and Related Activities Disclosure [Text Block] INCOME TAXES [Abstract] INCOME TAXES [Abstract] Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Summary of Income Tax Contingencies [Table Text Block] Summary of Income Tax Contingencies [Table Text Block] FAIR VALUE [Abstract] FAIR VALUE [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Cash equivalents Cash Equivalents, Fair Value Disclosure Fair value of cash equivalents, excluding items classified as marketable securities, including short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Marketable equity securities Marketable Equity Securities, Noncurrent, Fair Value Disclosure The fair value of marketable equity securities available for sale that are intended to be held long-term. Cash surrender value of life insurance Cash Surrender Value, Fair Value Disclosure SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) [Abstract] SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) [Abstract] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Stock Common Stock [Member] Common Class B Common Class B [Member] Gross Profit Gross Profit Net Income (Loss) Net Income (Loss) Per Share, Basic Earnings Per Share, Basic Net Income (Loss) Per Share, Diluted Earnings Per Share, Diluted Dividends Per Share Common Stock, Dividends, Per Share, Declared Common Stock Price Range, High Common Stock Price Range, High The highest daily closing market price for the entity's common stock on the NYSE for a given period. Common Stock Price Range, Low Common Stock Price Range, Low The lowest daily closing market price for the entity's common stock on the NYSE for a given peirod. Condensed Consolidated Balance Sheet Paranthetical [Abstract] Condensed Consolidated Balance Sheet Paranthetical [Abstract] Allowance for doubtful accounts receivable Allowance for Doubtful Accounts Receivable, Current Trademarks and patents accumulated amortization TrademarksAndPatentsAccumulated Amortization The accumulated amount of amortization of the costs pertaining to the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit PLUS the accumulated amount of amortization of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Debt issuance costs accumulated amortization DeferredFinanceCostAccumulatedAmortization The accumulated amount of amortization of long-term deferred finance costs capitalized. Licensing agreements and non-compete agreements accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Common Stock, par value per share Common Stock, Par or Stated Value Per Share Common Stock, shares issued Common Stock, Shares, Issued Treasury Stock, shares Treasury Stock, Shares OTHER CASH FLOW INFORMATION [Abstract] OTHER CASH FLOW INFORMATION [Abstract] Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] PENSION AND OTHER POSTRETIREMENT BENEFITS [Abstract] PENSION AND OTHER POSTRETIREMENT BENEFITS [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan by Plan Asset Categories [Axis] Defined Benefit Plan, Asset Categories [Axis] Plan Asset Categories [Domain] Plan Asset Categories [Domain] Cash and accrued income Cash and Cash Equivalents [Member] Fixed Income Fixed Income Funds [Member] Equity Equity Securities [Member] Defined Benefit Plan Disclosure Defined Benefit Plan Disclosure [Line Items] Target Allocation % Defined Benefit Plan, Target Plan Asset Allocations Actual Allocation % Defined Benefit Plan, Actual Plan Asset Allocations Consolidated Statements of Other Comprehensive Income [Abstract] Consolidated Statements of Other Comprehensive Income [Abstract] Statement, Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Unrealized gain on marketable securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Pension and postretirement benefits Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Cumulative translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Other Comprehensive Income (Loss) Other Comprehensive Income (Loss), Net of Tax Comprehensive Income (Loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Notes Payable [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Prudential Insurance Company of America, Prudential Retirement Insurance and Annuity Company, Forethought Life Insurance Company, Physicians Mutual Insurance Company and BCBSM, Inc. Prudential Insurance company of America, Prudential Retirement Insurance and Annuity Company, forethought Life Insurance company, Physicians Mutual Insurance Company and BCBSM, Inc [Member] Prudential Insurance company of America, Prudential Retirement Insurance and Annuity Company, forethought Life Insurance company, Physicians Mutual Insurance Company and BCBSM, Inc [Member] Prudential Financial Prudential Financial [Member] Prudential Financial [Member] The Prudential Insurance Company of America and Prudential Retirement Insurance and Annuity Company The Prudential Insurance Company of America and Prudential Retirement Insurance and Annuity Compan [Member] The Prudential Insurance Company of America and Prudential Retirement Insurance and Annuity Compan [Member] Principal payment due October 15, 2013 Principal payment due October 15, 2013 [Member] Principal payment due October 15, 2013 Principal payment due October 15, 2014 Principal payment due October 15, 2014 [Member] Principal payment due October 15, 2014 Principal payment due October 15, 2015 Principal payment due October 15, 2015 [Member] Principal payment due October 15, 2015 Line of Credit [Member] Line of Credit [Member] Debt Instrument Debt Instrument [Line Items] Notes Payable, current and noncurrent Senior Notes Current maturities of notes payable Senior Notes, Current Notes payable, noncurrent Senior Notes, Noncurrent Annual rate Debt Instrument, Interest Rate, Stated Percentage Final payment due Debt Instrument, Maturity Date Annual Principal Installments Debt Instrument, Periodic Payment, Principal Starting payments Debt Instrument, Maturity Date Range, Start Ending payments Debt Instrument, Maturity Date Range, End Minimum overdue financial obligation considered as default DebtInstrumentMinimumOverdueFinancialObligationConsideredAsDefault The amount of obligation due, which if exceeded (after grace periods and absent a waiver from the lenders) and which there is a failure to pay, would result in an event of default and acceleration of the maturity of any outstanding debt as per the cross-default provision under the credit facility. Line of credit amount outstanding Line of Credit Facility, Amount Outstanding Notes Payable Maturities 2014 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2015 Long-term Debt, Maturities, Repayments of Principal in Year Two 2016 Long-term Debt, Maturities, Repayments of Principal in Year Three 2017 Long-term Debt, Maturities, Repayments of Principal in Year Four 2018 Long-term Debt, Maturities, Repayments of Principal in Year Five Later years Long-term Debt, Maturities, Repayments of Principal after Year Five Notes Payable Segment Reporting Disclosure [Text Block] Segment Reporting Disclosure [Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Statement, Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Segment, Geographical [Domain] Domestic operations Segment, Geographical, Groups of Countries, Group One [Member] Foreign subsidiaries Segment, Geographical, Groups of Countries, Group Two [Member] Financial Information by Geographic Region Revenues from External Customers and Long-Lived Assets [Line Items] Sales to unaffiliated customers Sales or transfers between geographic areas Sales or transfers between geographic areas Sales or transfers between domestic and foreign subsidiaries that are eliminated upon consolidation. Income (Loss) before income taxes Identifiable assets Consolidated Balance Sheets [Abstract] Consolidated Balance Sheets [Abstract] ASSETS Assets [Abstract] Current Assets Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Short-term investments Short-term Investments Accounts receivable, less allowance of $641 and $626 in 2013 and 2012, respectively Accounts Receivable, Net, Current Inventories Inventory, Net Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Current Prepaid repairs expense Other Prepaid Expense, Current Prepaid expenses and other assets Prepaid Expense, Current Total Current Assets Assets, Current Property, Plant and Equipment Property, Plant and Equipment, Gross [Abstract] Buildings and leasehold improvements Buildings and Improvements, Gross Machinery and equipment Machinery and Equipment, Gross Office furniture and equipment Property, Plant and Equipment, Other, Gross Vehicles Vehicles Gross amount, as of the balance sheet date, of long-lived, depreciable assets that include motorized vehicles used in the production process to produce goods and services. Gross depreciable assets GrossDepreciableAssets Gross amount, at the balance sheet date, of long-lived depreciable assets used in the normal conduct of business and not intended for resale. Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Net depreciable assets NetDepreciableAssets Tangible depreciable assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Construction in progress Construction in Progress, Gross Land Land, mineral rights and reclamation asset The total carrying value of land, mineral rights and reclamation assets. Total Property, Plant and Equipment, Net Property, Plant and Equipment, Net Other Assets Other Assets, Noncurrent [Abstract] Goodwill Goodwill Trademarks and patents, net of accumulated amortization of $427 and $409 in 2013 and 2012, respectively TrademarksAndPatents Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit PLUS The amount, net of accumulated amortization, as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply, receive and maintain patent rights, or to acquire such rights. Debt issuance costs, net of accumulated amortization of $455 and $380 in 2013 and 2012, respectively Deferred Finance Costs, Noncurrent, Net Licensing agreements and non-compete agreements, net of accumulated amortization of $1,861 and $1,611 in 2013 and 2012, respectively Finite-Lived Intangible Assets, Net Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Other Other Assets, Noncurrent Total Other Assets Assets, Noncurrent Total Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current Liabilities Liabilities, Current [Abstract] Current maturities of notes payable Accounts payable Accounts Payable and Accrued Liabilities, Current Dividends payable Dividends Payable, Current Accrued expenses Accrued Liabilities, Current [Abstract] Salaries, wages and commissions Employee-related Liabilities, Current Trade promotions and advertising Accrued Marketing Costs, Current Freight Accrued Liabilities, Current Other Other Liabilities, Current Total Current Liabilities Liabilities, Current Noncurrent Liabilities Liabilities, Noncurrent [Abstract] Notes payable Deferred compensation Deferred Compensation Liability, Classified, Noncurrent Pension and postretirement benefits Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent Other Other Liabilities, Noncurrent Total Noncurrent Liabilities Liabilities, Noncurrent Total Liabilities Liabilities Stockholders’ Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Common Stock, par value $.10 Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Restricted unearned stock compensation Deferred Compensation Equity Retained earnings Retained Earnings (Accumulated Deficit) Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gain on marketable securities Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Pension and postretirement benefits Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Cumulative translation adjustment Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Less Treasury Stock, at cost (2,914,567 Common and 324,741 Class B shares in 2013 and 2,911,564 Common and 324,741 Class B shares in 2011) Treasury Stock, Value Total Stockholders’ Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total Liabilities and Stockholders’ Equity Liabilities and Equity STOCK-BASED COMPENSATION [Abstract] STOCK-BASED COMPENSATION [Abstract] Summary of stock option transactions [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Stock Options Stock Options [Member] Summary of Share-based Award Activity Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Options outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Options outstanding, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options outstanding, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Options outstanding, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Options exercisable, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Options exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Options exercisable, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Options exercisable, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Options nonvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Nonvested, Number As of the balance sheet date, the number of nonvested stock option shares outstanding. Options nonvested, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Exercise Price As of the balance sheet date, the weighted average exercise price for nonvested stock options. Exercised, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value EMPLOYEE BENEFIT PLANS [Abstract] EMPLOYEE BENEFIT PLANS [Abstract] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Pension Benefits Pension Plans, Defined Benefit [Member] Postretirement Health Benefits Other Postretirement Benefit Plans, Defined Benefit [Member] 401(k) Plan Defined Contribution Pension [Member] Defined Benefit Plans and Other Postretirement Benefit Plans Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Foreign subsidiaries' contribution to defined contribution plans Defined Contribution Plan, Cost Recognized Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Pension plan estimated employer contributions in next fiscal year Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year Historical actual return Historical Actual Return The average of actual return for the past 10 years Historical actual return period HistoricalActualRateOfReturnPeriod Period over which the historical actual rate of return is calculated. Actual rate of return Actual Rate of Return Actual Rate of Return for current fiscal year Health care cost trend rate assumed Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate Cash and Cash Equivalents Equity securities U.S. companies Equity Securities: U.S. companies [Member] This category includes information about ownership interests or the right to acquire ownership interests in corporations and other legal entities which ownership interest is represented by shares of common or preferred stock (which is neither mandatorily redeemable no redeemable at the option of the holder), convertible securities, stock rights, or stock warrants for U.S. Companies. Equity securities International companies Equity Securities International Companies [Member] This category includes information about ownership interests or the right to acquire ownership interests in corporations and other legal entities which ownership interest is represented by shares of common or preferred stock (which is neither mandatorily redeemable no redeemable at the option of the holder), convertible securities, stock rights, or stock warrants for international companies. Equity securities - international mutual funds: Developed market International Equity Mutual Funds Developed Markets [Member] An investment that pools funds from many investors to invest in a combination of underlying investments, primarily equity investments in developed markets. International Equity Mutual Funds Emerging Markets International Equity Mutual Funds Emerging Markets [Member] An investment that pools funds from many investors to invest in a combination of underlying investments, primarily equity investments in emerging markets. Commodities Commodity Based Investments [Member] An investment primarily in commodity-linked derivative instruments. Fixed Income: U.S. Treasuries US Treasury Securities [Member] Fixed Income: Corporate bonds Corporate Debt Securities [Member] Fixed Income: Emerging markets Fixed Income Emerging Markets [Member] An investment that pools funds from many investors to invest in a combination of underlying investments, primarily directly in or in derivative instruments that provide exposure to, fixed income investments in emerging markets. Fixed Income: Government sponsored entities Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Fixed Income: Multi-strategy bond fund Fixed Income: Multi-strategy bond fund [Member] An investment that invests at least 80% of its net assets in bonds and other fixed income instruments issued by governmental or private-sector entities. More than 50% of its net assets are invested in mortgage-backed securities. The fund may invest up to 33 1/3% of its net assets in high-yield bonds, bank loans and assignments and credit default swaps. Other Other Investment [Member] An investment that pools funds from many investors that employs a variety of investment strategies. The portfolio may include equities, convertible securities, debt securities, warrants, options, swaps, future contracts, forwards or other types of deriviative instruments. Defined Benefit Plan, Fair Value of Plan Assets by Measurement [Axis] Fair Value Plan Asset Measurement [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Pension Plan Assets, Fair Value Defined Benefit Plan, Fair Value of Plan Assets Minimum % of Fund Assets Invested in Non-US Stocks Developed Market % of Fund Assets Invested in Non-US Stocks Percent of Fund Assets Invested in Stocks of Non-US Companies, primarily in developed markets Maximum % of Fund Assets Invested in Non-US Stocks Emerging Markets % of Fund Assets Invested in Emerging Markets Percent of Fund Assets Invested in Non-US Stocks, emerging markets Minimum % of Fund Assets Invested Primarily in Asian Stocks excluding Japan % of Fund Assets Invested Primarily in Asian Stocks excluding Japan % of Fund Assets Invested Primarily in Asian Stocks, excluding Japan Minimum % of Fund Assets Invested in Derivative, Emerging Markets or Other Debt Instruments % of Fund Assets Invested in Derivative, Emerging Markets or Other Debt Instruments % of Fund Assets Invested in Derivative, Emerging Markets or Other Debt Instruments Minimum % of Fund Assets Invested in Bonds and Other Fixed Income Minimum % of Fund Assets Invested in Bonds and Other Fixed Income % of net assets in bonds and other fixed income instruments issued by governmental or private-sector entities. Minimum % of Fund Assets Invested in Mortgage-Backed Securities Minimum % of Fund Assets Invested in Mortgage-Backed Securities Minimum % of Fund Assets Invested in Mortgage-Backed Securities Maximum % of Fund Invested in High-Yield Investments Maximum % of Fund Invested in High-Yield Investments Maximum % of net assets invested in high-yield bonds, bank loans and assignments and credit default swaps. Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Maturities of Long-term Debt [Table Text Block] Prudential Insurance Company of America, Prudential Retirement Insurance and Annuity Company, Forethought Life Insurance Company, Physicians Mutual Insurance Company and BCBSM, Inc Line of Credit, BMO Harris Face amount Debt Instrument, Face Amount Interest rate Maturity date Initiation date Line of Credit Facility, Initiation Date Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Expiration date Line of Credit Facility, Expiration Date Variable interest rate, prime based Line of Credit Facility, Variable Interest Rate, Prime Based The variable interest rate based on the prime rate for the line of credit facility as of the end of the period. Variable interest rate, LIBOR based Line of Credit Facility, Variable Interest Rate, LIBOR Based The variable interest rate based on the LIBOR rate for the line of credit facility as of the end of the period. Consolidated net worth covenant base Consolidated Net Worth Covenant Base Our credit agreement with BMO Harris indirectly restricts dividends by requiring us to maintain consolidated net worth, as defined, of about $56,760,000 plus 25% of cumulative quarterly earnings from January 31, 2006. Consolidated net worth covenant - additional % cumulative quarterly earnings ConsolidatedNetWorthCovenant Additional%CumulativeQrtlyEarnings Our credit agreement with BMO Harris indirectly restricts dividends by requiring us to maintain consolidated net worth, as defined, of about $56,760,000 plus 25% of cumulative quarterly earnings from January 31, 2006. Consolidated net worth covenant - cumulative quarterly earnings commencement date ConsolidatedNetWorthCovenantCumulativeQrtlyEarnings CommencementDate Our credit agreement with BMO Harris indirectly restricts dividends by requiring us to maintain consolidated net worth, as defined, of about $56,760,000 plus 25% of cumulative quarterly earnings from January 31, 2006. DEFERRED COMPENSATION [Abstract] DEFERRED COMPENSATION [Abstract] Compensation Related Costs, General Compensation Related Costs, General [Text Block] Cash Flow, Supplemental Disclosures [Text Block] Cash Flow, Supplemental Disclosures [Text Block] Schedule of Property, Plant and Equipment [Table] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Buildings and leasehold improvements Buildings and leasehold improvements [Member] Buildings and leasehold improvements [Member] Machinery and Equipment - Packaging Equipment [Member] Machinery and Equipment - Processing Other Machinery and Equipment [Member] Machinery and Equipment - Mining and Other Mining and Other [Member] Mining and other machinery and equipment [Member] Office furniture, computers and equipment Office furniture, computers and equipment [Member] Office furniture, computers and equipment [Member] Vehicles Vehicles [Member] Property, Plant and Equipment Property, Plant and Equipment [Line Items] Estimated useful life Property, Plant and Equipment, Useful Life Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Type of Deferred Compensation [Axis] Deferred Bonus and Profit Sharing Plan, Type of Deferred Compensation [Axis] Type of Deferred Compensation [Domain] Type of Deferred Compensation, All Types [Domain] Deferred Compensation Deferred Compensation [Member] An agreement whereby certain members of management and directors may elect to defer receipt of payment of a portion of their salary, consulting fee and/or their discretionary bonus awarded, if any for that year, within certain paratmeters. Interest will be earned on the deferred amounts. Deferred Executive Bonus Deferred Bonus [Member] Supplemental Employee Retirement Plans, Defined Benefit Supplemental Employee Retirement Plans, Defined Benefit [Member] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Annual Total Amount Deferred Deferred Compensation Annual Total The total amount of compensation elected to be deferred during the fiscal year. Deferred Compensation Interest Expense Deferred Compensation Interest Expense The interest expense recorded during the year related to deferred compensation balances in accordance with the related plan terms. Deferred Compensation Payments to Participants Deferred Compensation Arrangement with Individual, Distributions Paid Deferred Compensation Recorded Liability Deferred Compensation Arrangement with Individual, Recorded Liability Deferred Compensation Employer Awards Deferred Compensation Arrangement with Individual, Employer Contribution Deferred Compensation Vesting Period (years) Deferred Compensation Arrangement with Individual, Requisite Service Period Supplemental Executive Retirement Plan (Income) Expense Supplemental Executive Retirement Plan Cost The total expense recognized related to the Supplemental Executive Retirement Plan (SERP) as the result of the change in the corresponding liability. Supplemental Executive Retirement Plan Liability Defined Benefit Plan, Benefit Obligation Debt Disclosure [Text Block] Debt Disclosure [Text Block] Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of Share-based Compensation, Restricted Stock Activity [Table Text Block] Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Leases [Abstract] Leases of Lessor Disclosure [Text Block] Leases of Lessor Disclosure [Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Restricted Stock Restricted Stock [Member] Summary of Restricted Stock Activity Nonvested restricted stock outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Nonvested restricted stock outstanding, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Nonvested restricted stock outstanding, Weighted Average Remaining Contractual Term (years) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Nonvested retricted stock outstanding, Unamortized Expense Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options Granted, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Vested, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeitures, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeitures, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Short-Term Investments [Table Text Block] Investment in Short-Term Securities [Table Text Block] Investment in Short-Term Securities [Table Text Block] Inventories [Table Text Block] Schedule of Inventory, Current [Table Text Block] Estimated Intangible Amortization Expense [Table Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment [Table Text Block] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Major Customers [Axis] Major Customers [Axis] Name of Major Customer [Domain] Name of Major Customer [Domain] Revenue, Major Customer Revenue, Major Customer [Line Items] Net sales for the years ended July 31 Entity-Wide Revenue, Major Customer, Percentage Net accounts receivable as of July 31 Net Accounts Receivable Net Accounts Receivable FINANCIAL INSTRUMENTS [Abstract] FINANCIAL INSTRUMENTS [Abstract] Long-term Debt, Fair Value Long-term Debt, Fair Value Consolidated Statements of Cash Flows [Abstract] Consolidated Statements of Cash Flows [Abstract] Cash Flows from Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activites: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Amortization and Accretion, Net Amortization of investment (discounts) premiums Accretion (Amortization) of Discounts and Premiums, Investments Non-cash stock compensation expense Share-based Compensation Excess tax benefits for share-based payments Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Operating Activities Deferred income taxes Deferred Income Taxes and Tax Credits Provision for bad debts Provision for Doubtful Accounts Loss on the sale of property, plant and equipment Gain (Loss) on Sale of Property Plant Equipment Capacity rationalization charges (Increase) decrease in: Increase (Decrease) in Operating Assets [Abstract] Accounts receivable Increase (Decrease) in Accounts and Other Receivables Inventories Increase (Decrease) in Inventories Prepaid expenses Increase (Decrease) in Prepaid Expense and Other Assets Other assets Increase (Decrease) in Other Operating Assets Increase (decrease) in: Increase (Decrease) in Operating Liabilities [Abstract] Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses Increase (Decrease) in Accrued Liabilities Deferred compensation Increase (Decrease) in Deferred Compensation Pension and postretirement benefits Increase (Decrease) in Pension and Postretirement Obligations Other liabilities Increase (Decrease) in Other Operating Liabilities Total Adjustments Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Net Cash Provided by Operating Activities Net Cash Provided by (Used in) Operating Activities Cash Flows from Investing Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments to Acquire Property, Plant, and Equipment Proceeds from sale of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Purchases of short-term investments Payments to Acquire Short-term Investments Dispositions of short-term investments Proceeds from Sale of Short-term Investments Net Cash Used in Investing Activities Net Cash Provided by (Used in) Investing Activities Cash Flows from Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of notes payable Proceeds from Issuance of Senior Long-term Debt Principal payments on notes payable Repayments of Senior Debt Dividends paid Payments of Ordinary Dividends, Common Stock Purchase of treasury stock Payments for Repurchase of Common Stock Proceeds from issuance of treasury stock Proceeds from Sale of Treasury Stock Proceeds from issuance of common stock Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Excess tax benefits for share-based payments Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities Net Cash (Used in) Provided by Financing Activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net (Decrease) Increase in Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and Cash Equivalents, Beginning of Year Cash and Cash Equivalents, End of Year Deferred tax asset attributed to alternative minimum tax carryforward utilized Deferred tax asset alternative minimum tax carryforward utilized Deferred tax asset attributable to deductible alternative minimum tax credit carryforwards utilized during the year. AMT credit and foreign net operating loss carryforward Tax Credit Carryforward, Amount Unrecognized tax venefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized tax benefits, income tax penalties and interest accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Foreign and U.S. state tax statute of limitations (years) ForeignandStateTaxStatuteOfLimitations The number of years for foreign and U.S. state jurisdiction tax return statute of limitations. Defined Benefit Plans and Postretirement Health Benefits Deferred income tax Deferred income tax The noncurrent deferred income taxes recognized in the balance sheet related to defined benefit pension and other postretirment benefit plans. Other current liabilities Pension and Other Postretirement Defined Benefit Plans, Current Liabilities Other noncurrent Liabilities Accumulated other comprehensive income - net of tax, Net actuarial loss Defined Benefit Plan, Accumulated Other Comprehensive Income Net Gains (Losses), after Tax Accumulated other comprehensive income - net of tax, Prior service cost (income) Defined Benefit Plan, Accumulated Other Comprehensive Income Net Prior Service Cost Credit, after Tax Accumulated other comprehensive income - net of tax, Net obligation at transition Defined Benefit Plan, Accumulated Other Comprehensive Income Net Transition Assets (Obligations), after Tax Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Cost and Reserve [Axis] Restructuring Type [Axis] Total charges Type of Restructuring [Domain] Asset write-off Other Restructuring [Member] Severance and Other Employee Related Costs Severance and Other Employee Related Costs [Member] Severance and employee relocation associated with restructuring pursuant to a plan. Capacity Rationalization Charges Restructuring Cost and Reserve [Line Items] Charges recognized in year Estimated future expense Effect on Future Earnings, Amount Schedule of Defined Benefit Plans Disclosures [Table Text Block] Schedule of Defined Benefit Plans Disclosures [Table Text Block] Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Schedule of Net Benefit Costs [Table Text Block] Schedule of Net Benefit Costs [Table Text Block] Schedule of Amounts Recognized in Other Comprehensive Income [Table Text Block] Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] Schedule of Expected Benefit Payments [Table Text Block] Schedule of Expected Benefit Payments [Table Text Block] Schedule of Assumptions Used [Table Text Block] Schedule of Assumptions Used [Table Text Block] Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] Schedule of Allocation of Plan Assets [Table Text Block] Schedule of Allocation of Plan Assets [Table Text Block] Fair Value, Measurement Inputs, Disclosure [Table Text Block] Fair Value, Measurement Inputs, Disclosure [Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Benefit obligation, beginning of year Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Actuarial (gain) loss Defined Benefit Plan, Actuarial Gain (Loss) Plan amendments Defined Benefit Plan, Plan Amendments Benefits paid Defined Benefit Plan, Benefits Paid Benefit obligation, end of year Fair value of plan assets. beginning of year Actual return on plan assets Defined Benefit Plan, Actual Return on Plan Assets Employer contribution Defined Benefit Plan, Contributions by Employer Benefits paid Fair value of plan assets. end of year Funded status, recorded in Consolidated Balance Sheets Defined Benefit Plan, Funded Status of Plan Segment Reporting Information [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Financial information by geographic region [Table Text Block] Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Largest Customer Information [Table Text Block] Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Schedule of Quarterly Financial Information [Table Text Block] Schedule of Quarterly Financial Information [Table Text Block] Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Amortization of: Net transition obligations Defined Benefit Plan, Amortization of Transition Obligations (Assets) Amortization of: Prior service costs Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Amortization of: Other actuarial loss Defined Benefit Plan, Amortization of Gains (Losses) Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost Schedule of Stock by Class [Table] Class A Common Stock Common Class A [Member] Stockholders' Equity Class of Stock [Line Items] Shares Authorized Common Stock, Shares Authorized Par Value Per Share Shares Outstanding Common Stock, Shares, Outstanding Voting Rights Per Share Voting Rights Per Share Stockholder voting rights per share. Number of Shares Authorized to be Repurchased Stock Repurchase Program, Number of Shares Authorized to be Repurchased Shares Repurchased, Board Approved, Cummulative Shares Repurchased, Board Approved, Cummulative The cummulative number of shares that have been repurchased under Board approved authorizations. Shares Repurchased, Management Approved, Cummulative Shares Repurchased, ManagementApproved, Cummulative The cummulative number of shares that have been repurchased under Management approved authorizations. Relative Dividend Rate - Common Stock Versus Class B Stock Common Stock Description of Dividend Rates Relative Dividend Rate Common Stock Versus Class B Stock Relative Total Dividend Rate - Common Stock Plus Class A Versus Class A Plus Class B Stock RelativeTotalDividendRateCommonStockPlusClassA Versus ClassAPlusClassBStock The sum of the per share cash dividend paid on shares of Common Stock and Class A Common Stock must be equal to at least 133.33% of the sum of the per share cash dividend paid on Class B Stock and Class A Common Stock. Disclosure of Compensation Related Costs, Share-based Payments Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Future Minimum Rental Requirements Operating Leased Assets [Line Items] 2014 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2015 Operating Leases, Future Minimum Payments, Due in Two Years 2016 Operating Leases, Future Minimum Payments, Due in Three Years 2017 Operating Leases, Future Minimum Payments, Due in Four Years 2018 Operating Leases, Future Minimum Payments, Due in Five Years Later years Operating Leases, Future Minimum Payments, Due Thereafter NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Quarterly Financial Information [Text Block] Quarterly Financial Information [Text Block] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Interest Interest Paid Income Taxes Income Taxes Paid, Net Income Tax Disclosure [Text Block] Income Tax Disclosure [Text Block] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Axis] Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Domain] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] $9.00 - $10.50 Range One [Member] Range One [Member] used in supplementary information on outstanding and exercisable share awards as of the balance sheet date stratified by ranges of exercise prices. $10.51 - $12.00 Range Two [Member] Range Two [Member] used in supplementary information on outstanding and exercisable share awards as of the balance sheet date stratified by ranges of exercise prices. $12.01 - $13.50 Range Three [Member] Range Three [Member] used in supplementary information on outstanding and exercisable share awards as of the balance sheet date stratified by ranges of exercise prices. $13.51 - $15.00 Range Four [Member] Range Four [Member] used in supplementary information on outstanding and exercisable share awards as of the balance sheet date stratified by ranges of exercise prices. $15.01 - $16.50 Range Five [Member] Range Five [Member] used in supplementary information on outstanding and exercisable share awards as of the balance sheet date stratified by ranges of exercise prices. $16.51 - $17.00 Range Six [Member] Range Six [Member] used in supplementary information on outstanding and exercisable share awards as of the balance sheet date stratified by ranges of exercise prices. Share-based Compensation, Options Outstanding and Exercisable, by Exercise Price Range Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Number of Shares Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Weighted Average Remaining Contractual Life Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Weighted Average Exercise Price Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price Range of Exercise Prices, Lower Limit Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Range of Exercise Prices, Upper Limit Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Consolidated Statements of Operations [Abstract] Consolidated Statements of Operations [Abstract] Basic Common Basic Class B Common Cost of Sales Cost of Goods Sold Gross Profit Selling, General and Administrative Expenses Selling, General and Administrative Expense Capacity Rationalization Charges Income from Operations Other Income (Expense) Other Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense Interest Expense, Debt Foreign exchange loss Foreign Currency Transaction Gain (Loss), before Tax Other, net Other Nonoperating Income (Expense) Total Other Expense, Net Income Before Income Taxes Income Taxes Net Income Net Income Per Share Earnings Per Share [Abstract] Basic Diluted Average Shares Outstanding Weighted Average Shares Outstanding [Abstract] Weighted Average Shares Outstanding [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Number of Reportable Segments Number of Reportable Segments Deferred Tax Asset Liability [Axis] Deferred Tax Asset Liability [Axis] Components of Deferred Taxes classified as an Asset or Liability on the consolidated balance sheet[Axis] Deferred Tax Asset Liability [Domain] Deferred Tax Asset Liability [Domain] Deferred Tax Asset Liability [Domain] Deferred Tax Asset Deferred Tax Asset [Member] Asset component of Deferred Taxes on the consolidated balance sheet. [Member] Deferred Tax Liability Deferred Tax Liability [Member] Liability component of Deferred Taxes on the consolidated balance sheet. [Member] Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation Postretirement benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits Net operating Loss Deferred Tax Assets, Operating Loss Carryforwards Allowance for doubtful accounts Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Deferred marketing expenses Deferred Tax Liabilities, Deferred Expense Other assets Deferred Tax Assets, Other Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Tax credits Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax Amortization Deferred Tax Liabilities, Goodwill and Intangible Assets Inventories Deferred Tax Assets, Inventory Depletion Deferred Tax Liabilities, Other Finite-Lived Assets Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Reclamation Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations Other assets - foreign Deferred Tax Asset Liability Net Foreign Subsidiaries The net amount of deferred tax assets and liabilities related to foreign subsidiaries as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. Valuation allowance Deferred Tax Assets, Valuation Allowance Total deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Total deferred tax liabilities Deferred Tax Liabilities, Net Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Public Float Entity Public Float Consolidated Statements of Stockholders Equity and Other Comprehensive Income [Abstract] Consolidated Statements of Stockholders Equity and Other Comprehensive Income [Abstract] Statement, Equity Components [Axis] Equity Components [Axis] Total Stockholders' Equity Equity Component [Domain] Common & Class B Stock Treasury Stock Treasury Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Restricted Unearned Stock Compensation Deferred Compensation, Share-based Payments [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Member] Total, Beginning of Period Common & Class B Stock, Beginning of Period (in shares) Treasury Stock, Beginning of Period (in shares) Other Comprehensive Income (Loss), Net of Tax Dividends Declared Dividends, Common Stock, Cash Purchases of Treasury Stock Treasury Stock, Value, Acquired, Cost Method Purchases of Treasury Stock (in shares) Treasury Stock, Shares, Acquired Issuance of Stock Under Long-Term Incentive Plans Stock Issued During Period, Value, Share-based Compensation, Gross Issuance of Stock Under Long-Term Incentive Plans (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Share-based Compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Amortization of Restricted Stock Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition Total, End of Period Common & Class B Stock, End of Period (in shares) Treasury Stock, End of Period (in shares) Amortization of: Net actuarial loss Defined Benefit Plan, Amortization of Net Gains (Losses) Amortization of: Prior service cost (income) Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit) Amortization of: Net obligation at transition Defined Benefit Plan, Amortization of Net Transition Asset (Obligation) Total to be recognized in other comprehensive (income) loss Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year Short-Term Investments Schedule of Held-to-maturity Securities [Table] Investment Type [Axis] Investment Type [Axis] Investment Type Categorization [Domain] Investment Type Categorization [Domain] U.S. Treasury Securities US Treasury and Government [Member] Certificates of Deposit Certificates of Deposit [Member] Short-Term Investments Schedule of Held-to-maturity Securities [Line Items] Short-Term Investments Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity Note Disclosure Stockholders' Equity Note Disclosure [Text Block] U.S. federal income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Depletion deductions allowed for mining Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depletion State income tax expense, net of federal tax expense Effective Income Tax Rate Reconciliation, State and Local Income Taxes Foreign tax restructuring Effective Income Tax Rate Reconciliation, Tax Credits, Foreign Difference in effective tax rate of foreign subsidiaries Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential Empowerment zone credits Effective Income Tax Rate Reconciliation, Tax Credits, Other Valuation allowance (decrease) increase Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance Other Effective Income Tax Rate Reconciliation, Other Adjustments Effective income tax rate Effective Income Tax Rate, Continuing Operations OTHER CONTINGENCIES [Abstract] OTHER CONTINGENCIES [Abstract] Other Contingencies Disclosure [Text Block] Commitments and Contingencies Disclosure [Text Block] Pension and Other Postretirement Benefits Disclosure [Text Block] Pension and Other Postretirement Benefits Disclosure [Text Block] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 1995 Plan 1995 Plan [Member] 1995 Plan [Member] 2006 Plan 2006 Plan [Member] 2006 Plan [Member] 2006 Plan - Employee Stock Options [Member] 2006 Plan - Employee Stock Options [Member] Employee Stock Options under our 2006 Long Term Incentive Plan 2006 Plan - Restricted Stock [Member] 2006 Plan - Restricted Stock [Member] Restricted Stock grants under our 2006 Long Term Incentive Plan Director Stock Option [Member] Director Stock Option [Member] Stock options issued to company directors. Directors' Plan Directors' Plan [Member] Directors' Plan [Member] Share-based Compensation Award Disclosure Fair value calculation, volatility calculation period (years) ShareBasedCompensationByShareBasedPaymentAwardFairValueAssumptionVolatilityPeriod For the volatility assumption in the fair value of share-based compensation calculation, this is the specified period over which the standard deviation of the continuously compounded rate of return on the share price is determined. Options expiration term (years) Share Based Compensation Share Based Payment Award Options Expiration Term The term of the award from grant date to expiration. Annual vesting percentage ShareBasedCompensationVestingPercentageAnnual Percent of share based compensation that vests annually. Number of years after grant date vesting starts (years) NumberYearsAfterGrantDateVestingStarts The number of years after the grant date that vesting starts. Number of consecutive years vesting occurs after initial vest date (years) NumberOfConsecutiveYearsVestingOccursAfterInitialVestDate Number of consecutive years vesting continues after the initial vest date. Number of shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of shares available for grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Award vesting period (years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Cash received from exercise of stock options Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Tax benefit realized from exercise of stock options Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Share-based compensation expense Allocated Share-based Compensation Expense Nonvested awards, unamortized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Nonvested awards, unamortized compensation expense, period for recognition (years) Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Discount rate for net periodic benefit costs Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Discount rate for year-end obligations Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Rate of increase in compensation levels for net periodic benefit costs Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Rate of increase in compensation levels for year-end obligations Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Long-term expected rate of return on assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Estimated Intangible Amortization Expense Finite-Lived Intangible Assets [Line Items] 2014 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Five Effect of One Percentage Point Increase on total service and interest cost Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components Effect of One Percentage Point Decrease on total service and interest cost Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components Effect of One Percentage Point Increase on accumulated postretirement benefit obligation Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation Effect of One Percentage Point Decrease on accumulated postretirement benefit obligation Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation Fair Value Disclosures [Text Block] Fair Value Disclosures [Text Block] Schedule of Restructuring and Related Costs [Table Text Block] Schedule of Restructuring and Related Costs [Table Text Block] Asset write-off Impairment in Value of Asset [Domain] Reserve balance, beginning Restructuring Reserve Charges against reserve Restructuring and Related Cost, Incurred Cost Reserve adjustment Restructuring Reserve, Accrual Adjustment Reserve balance, ending Net actuarial (gain) loss Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax Prior service cost established due to plan amendments Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Prior Service Costs Arising During Period, Net of Tax Amortization of: Prior service cost Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax Amortization of: Net transition obligation Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Transition Asset (Obligation), Recognized in Net Periodic Benefit Cost, Net of Tax Amortization of actuarial loss Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax Total recognized in other comprehensive (income) loss 2014 Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months 2015 Defined Benefit Plan, Expected Future Benefit Payments, Year Two 2016 Defined Benefit Plan, Expected Future Benefit Payments, Year Three 2017 Defined Benefit Plan, Expected Future Benefit Payments, Year Four 2018 Defined Benefit Plan, Expected Future Benefit Payments, Year Five 2019-23 Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Rent Expense [Table Text Block] Schedule of Rent Expense [Table Text Block] Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Income Tax Contingency Income Tax Contingency [Line Items] Gross balance - beginning of year Unrecognized Tax Benefits Gross increases - tax positions in current year Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions Gross decreases - tax positions from prior years Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions Gross balance - end of year Current Federal Current Federal Tax Expense (Benefit) Current Foreign Current Foreign Tax Expense (Benefit) Current State Current State and Local Tax Expense (Benefit) Current Income Tax Total Current Income Tax Expense (Benefit) Deferred Federal Deferred Federal Income Tax Expense (Benefit) Deferred Foreign Deferred Foreign Income Tax Expense (Benefit) Deferred State Deferred State and Local Income Tax Expense (Benefit) Deferred Income Tax Total Deferred Income Tax Expense (Benefit) Total Income Tax Expense Principles of Consolidation Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Management Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Short-Term Investments Investment, Policy [Policy Text Block] Trade Receivables Trade and Other Accounts Receivable, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Translation of Foreign Currencies Foreign Currency Transactions and Translations Policy [Policy Text Block] Intangible Assets and Goodwill Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Overburden Removal and Mining Costs Overburden Removal and Mining Costs [Policy Text Block] Description of accounting policy for overburden removal/stripping costs for mined properties and other mining-related costs. Reclamation Asset Retirement Obligations, Policy [Policy Text Block] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Trade Promotions Trade Promotions [Policy Text Block] Disclosure of accounting policy for trade promotions which are netted against revenue. Advertising Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Cost of Sales Cost of Sales, Policy [Policy Text Block] Shipping and Handling Costs Shipping and Handling Cost, Policy [Policy Text Block] Selling, General and Administrative Expenses Selling, General and Administrative Expenses, Policy [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Pension and Postretirement Benefit Costs Pension and Other Postretirement Plans, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Segment Reporting Segment Reporting, Policy [Policy Text Block] Finished goods Inventory, Finished Goods, Gross Packaging Packaging Inventory Packaging Inventory Other Other Inventory, Gross Inventories Vehicles and Railcars Vehicles and Railcars [Member] Vehicles and Railcars Office facilities Office Building [Member] Warehouse facilities Warehouse [Member] Mining properties Mining Properties and Mineral Rights [Member] Other Other Capitalized Property Plant and Equipment [Member] Total Rental Expense Rent Expense Operating Leases, Rent Expense Rent Expense, Minimum Operating Leases, Rent Expense, Minimum Rentals Rent Expense, Contingent Operating Leases, Rent Expense, Contingent Rentals Rent Expense, Net Operating Leases, Rent Expense, Net