Document and Entity Information [Abstract] Document and Entity Information [Abstract] Statement [Table] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Public Float Entity Voluntary Filers Entity Well-known Seasoned Issuer Consolidated Balance Sheets [Abstract] Assets [Abstract] Assets Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of year Cash and cash equivalents at beginning of year Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Available-for-sale Securities, Current Marketable securities Available-for-sale Securities, Current, Total Accounts Receivable, Net, Current Accounts receivable, net Accounts Receivable, Net, Current, Total Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). This also reflects the difference between (a) inventory at the lower of LIFO cost or market and (b) inventory at replacement cost or at the lower of some acceptable inventory accounting method (such as FIFO or average cost), or market. If material, reflects an excess of replacement or current cost over stated LIFO value parenthetically on the balance sheet or in a note to the financial statements. Inventories Inventories Inventories Prepaid Expense, Current Prepaid expenses Prepaid Expense, Current, Total Income Taxes Receivable Income taxes recoverable Assets, Current Total current assets Property, Plant and Equipment, Net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property and equipment, net Property, plant and equipment, net Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill Goodwill, Total Intangible Assets, Net (Excluding Goodwill) Intangible and other assets, net Intangible Assets, Net (Excluding Goodwill), Total Assets Total assets Liabilities and Stockholders' Equity [Abstract] Liabilities [Abstract] Liabilities Accounts Payable, Current Accounts payable Accounts Payable, Current, Total Accrued Liabilities, Current Accrued expenses Accrued Liabilities, Current, Total Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probably being asserted. These losses arise from workers' compensation, general liability, vehicle accident and associate medical benefit claims. This is the amount needed to reflect the estimated ultimate cost of settling unasserted claims estimated to have been incurred by the entity on or before the balance sheet date. Accrued self-insurance Accrued self-insurance Deferred Revenue, Current Deferred revenue, net Deferred Revenue, Current, Total Accrued Income Taxes, Current Income taxes payable Deferred Tax Liabilities, Current Current deferred tax liability - net Deferred income taxes Liabilities, Current Total current liabilities This represents the noncurrent liability recognized in the balance sheet that is associated with the Company's postretirement defined benefit plan, the Deferred Compensation Plan, as well as noncurrent liabilities related to the non-qualified supplemental executive retirement plan (SERP) and the non-qualified pharmacist deferred compensation plan as of the balance sheet date. Both the SERP and the pharmacist deferred compensation plan are designed to provide retirement benefits and salary deferral opportunities because of limitations imposed by the Internal Revenue Code and the Regulations implemented by the Internal Revenue Service. All three plans are unfunded and accounted for on an accrual basis. Postretirement benefit obligations Deferred Tax Liabilities, Noncurrent Noncurrent deferred tax liability - net Deferred income taxes Other Liabilities, Noncurrent Other Other Liabilities, Noncurrent, Total Liabilities Total liabilities Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Shareholders' Equity Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, no par value, 100,800,000 shares authorized, 33,047,807 shares issued Common Stock, Value, Issued, Total Retained Earnings (Accumulated Deficit) Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained earnings Retained Earnings (Accumulated Deficit), Total Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Beginning Balance Accumulated other comprehensive income, net The total value as of the balance sheet date of common stock, retained earnings, and accumulated other comprehensive income, before deducting the value of treasury stock. ShareholdersEquityBeforeTreasuryStock Shareholders' equity before treasury stock Treasury Stock, Value Treasury stock at cost, 6,149,364 shares Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Treasury stock at cost, 6,149,364 shares Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance, Balance, Balance Total shareholders' equity Liabilities and Stockholders' Equity Total liabilities and shareholders' equity Common Stock, No Par Value Common Stock, Shares Authorized Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares Issued Common Stock, Shares, Issued, Total Treasury Stock, Shares Treasury Stock, Shares, Ending Balance Treasury Stock, Shares, Beginning Balance Treasury Stock, Shares Consolidated Statements of Income [Abstract] Sales Revenue, Goods, Net Net sales Sales Revenue, Goods, Net, Total Cost of sales consists of direct product costs (net of discounts and allowances), warehouse costs, transportation costs and manufacturing facility costs. Also included are vendor allowances recorded as credits in cost of sales. Cost of sales, including warehousing and distribution expenses Gross Profit Gross profit on sales Gross profit on sales Selling, General and Administrative Expense Operating, general, and administrative expenses Selling, General and Administrative Expense, Total Operating Income (Loss) Income from operations Investment Income, Net Investment income Investment Income, Net, Total Other Income Other Income, Total Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income before provision for income taxes Income Tax Expense (Benefit) Provision for income taxes Provision for income taxes Net Income (Loss) Attributable to Parent Net income Net income Weighted-average shares outstanding, basic and diluted Common Stock, Dividends, Per Share, Declared Cash dividends per share Earnings Per Share, Basic and Diluted Basic and diluted earnings per share Earnings Per Share, Basic and Diluted, Total Consolidated Statements of Comprehensive Income [Abstract] Consolidated Statements of Comprehensive Income Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract] Other comprehensive income by component, net of tax: Unrealized holding gains arising during period, tax Unrealized holding gains arising during period (Net of deferred taxes of $87 and $127, respectively) Unrealized holding (losses) gains arising during period (Net of deferred taxes of $0, $923 and $288, respectively) Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax, Total Reclassification adjustment for gains included in net income (net of deferred taxes) Reclassification adjustment for gains included in net income (Net of deferred taxes of $1 and $258, respectively) Reclassification adjustment for gains included in net income (Net of deferred taxes of $293, $601 and $93, respectively) Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent, Total Other Comprehensive Income (Loss), Net of Tax Other comprehensive income, net of reclassification adjustments and tax Other comprehensive income, net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income, net of tax Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent Unrealized holding (losses) gains arising during period, tax Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent, Total Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax Reclassification adjustment for gains included in net income, tax Statement of Stockholders' Equity [Abstract] Shares, Outstanding Balance, shares Balance, shares Balance, shares, Treasury Stock, Value, Acquired, Cost Method Treasury stock purchased Treasury stock purchased Treasury Stock, Shares, Acquired Treasury Stock, Shares Dividends Dividends paid Dividends paid Dividends, Total Consolidated Statements of Cash Flows [Abstract] Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation Depreciation, Total Amortization of Intangible Assets Amortization Amortization of Intangible Assets, Total Gain (Loss) on Sale of Property Plant Equipment Gain on disposition of fixed assets (Gain) loss on disposition of fixed assets Gain (Loss) on Sale of Property Plant Equipment, Total Gain (Loss) on Sale of Investments Gain on sale of marketable securities Gain (Loss) on Sale of Investments, Total Business Combination, Bargain Purchase, Gain Recognized, Amount Gain on acquisition of business Gain on acquisition of business Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Inventories Inventories Inventories Increase (Decrease) in Inventories, Total The net change during the reporting period of the sum of amounts due within one year (or one business cycle) from customers for the credit sale of goods and services. Also includes the net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. Increase (Decrease) in Accounts Receivable and Prepaid Expenses Accounts receivable and prepaid expenses Increase (Decrease) in Income Taxes Receivable Income taxes recoverable Income taxes recoverable Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Increase (Decrease) in Accrued Income Taxes Payable Income taxes payable Deferred Income Tax Expense (Benefit) Deferred income taxes Deferred Income Tax Expense (Benefit), Total Increase (Decrease) in Other Operating Assets and Liabilities, Net Other Other Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Payments to Acquire Property, Plant, and Equipment Purchase of property and equipment Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment, Total Proceeds from Sale of Property, Plant, and Equipment Proceeds from the sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment, Total Payments to Acquire Available-for-sale Securities Purchase of marketable securities Purchase of marketable securities Payments to Acquire Available-for-sale Securities, Total Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Proceeds from maturities of marketable securities Proceeds from Sale of Held-to-maturity Securities Proceeds from the sale of marketable securities Proceeds from Sale of Available-for-sale Securities, Total Payments to Acquire Businesses, Net of Cash Acquired Acquisition of business Purchase price Payments to Acquire Businesses, Net of Cash Acquired, Total Payments to Acquire Intangible Assets Purchase of intangible assets Purchase of intangible assets Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Payments of Dividends, Common Stock Dividends paid Dividends paid Payments for Repurchase of Common Stock Purchase of treasury stock Purchase of treasury stock Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Cash and Cash Equivalents, Period Increase (Decrease) Net (decrease) increase in cash and cash equivalents Significant Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Significant Accounting Policies Marketable Securities [Abstract] Marketable Securities [Text Block] Marketable Securities Inventories Disclosure [Abstract] Inventories Text Inventories Property and Equipment [Abstract] Property, Plant and Equipment Disclosure [Text Block] Property and Equipment Lease Commitments [Abstract] Leases of Lessee Disclosure [Text Block] Lease Commitments Retirement Plans [Abstract] Pension and Other Postretirement Benefits Disclosure [Text Block] Retirement Plans Income Taxes [Abstract] Income Tax Disclosure [Text Block] Income Taxes Acquisition of Business [Abstract] Mergers, Acquisitions and Dispositions Disclosures [Text Block] Acquisition of Business Acquisition of Business Summary of Quarterly Results [Abstract] Quarterly Financial Information [Text Block] Summary of Quarterly Results Fair Value Information [Abstract] Fair Value Disclosures [Text Block] Fair Value Information Contingencies [Abstract] Contingencies Disclosure [Text Block] Contingencies Disclosure of the company's background and nature of operations. Description of Business [Policy Text Block] Fiscal Period, Policy [Policy Text Block] Definition of Fiscal Year [Policy Text Block] Consolidation, Policy [Policy Text Block] Pincipals of Consolidation [Policy Text Block] Use of Estimates, Policy [Policy Text Block] Use of Estimates [Policy Text Block] Reclassification, Policy [Policy Text Block] Reclassifications [Policy Text Block] Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents [Policy Text Block] Marketable Securities, Policy [Policy Text Block] Marketable Securities [Policy Text Block] Trade and Other Accounts Receivable, Policy [Policy Text Block] Accounts Receivable [Policy Text Block] Inventory, Policy [Policy Text Block] Inventories [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Goodwill and Intangible Assets, Policy [Policy Text Block] Goodwill and Intangible Assets [Policy Text Block] Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Impairment of Long-Lived Assets [Policy Text Block] Costs Associated with Exit or Disposal Activities or Restructurings, Policy, Ongoing Benefit Arrangements [Policy Text Block] Store Closing Costs [Policy Text Block] Disclosure of the Company's self insurance policy for workers' compensation, general liability, vehicle accident and associate medical benefit claims. Self Insurance Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Income Taxes [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] Earnings Per Share [Policy Text Block] Revenue Recognition, Policy [Policy Text Block] Cost of Sales, Policy [Policy Text Block] Cost of Sales, Including Warehousing and Distribution Expenses [Policy Text Block] Cost of Sales, Vendor Allowances, Policy [Policy Text Block] Vendor Allowances [Policy Text Block] Selling, General and Administrative Expenses, Policy [Policy Text Block] Operating, General and Administrative Expenses [Policy Text Block] Advertising Costs, Policy [Policy Text Block] Advertising Costs [Policy Text Block] Revenue Recognition Leases, Operating [Policy Text Block] Rental Income [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Current Relevant Accounting Standards [Policy Text Block] Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Marketable securities [Table Text Block] Investments Classified by Contractual Maturity Date [Table Text Block] Maturities of marketable securities classified as available-for-sale [Table Text Block] Schedule of Inventory, Current [Table Text Block] Merchandise Inventories [Table Text Block] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Table Text Block] Leases, Operating [Abstract] Schedule of Operating Leased Assets [Table] Operating Leased Assets [Line Items] Schedule of Rent Expense [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan Disclosure [Line Items] Schedule of Costs of Retirement Plans [Table Text Block] Schedule of Accumulated and Projected Benefit Obligations [Table Text Block] Schedule of Assumptions Used [Table Text Block] Schedule of Net Benefit Costs [Table Text Block] Schedule of Expected Benefit Payments [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 Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Schedule of Purchase Price Allocation [Table Text Block] Schedule of Quarterly Financial Information [Table Text Block] Schedule of Change in Accounting Estimate [Table] Range [Axis] Range [Member] Range [Domain] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Statement, Scenario [Axis] Scenario Unspecified [Domain] Scenario, Unspecified [Domain] Prior to March 1, 2012 [Member] Prior To March12012 [Member] Prior to March 1, 2012 [Member] Between March 1, 2012 to March 1, 2013 [Member] Between March12012 To March12013 [Member] Between March 1, 2012 to March 1, 2013 [Member] After March 1, 2013 [Member] After March12013 [Member] After March 1, 2013 [Member] Adjustments for Change in Accounting Principle [Axis] Change In Accounting Principle [Member] Adjustments for Change in Accounting Principle [Domain] Depreciation Expense [Member] Depreciation Expense [Member] Depreciation Expense [Member] New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic Earnings Per Share Cash Equivalents, at Carrying Value Cash Equivalents, at Carrying Value, Total Allowance for Doubtful Accounts Receivable Allowance for Doubtful Accounts Receivable, Ending Balance Allowance for Doubtful Accounts Receivable, Beginning Balance Closed store liabilities relating to the estimated post-closing lease liabilities and related other exit costs associated with the store closing commitments. Closed store lease liabilities Self Insurance, Annual Maximum of Health Claims Liability per Associate Self Insurance, Annual Maximum of Health Claims Liability per Associate Self Insurance, Maximum of Workers Compensation Claims Liability per Associate per Claim Self Insurance, Maximum of Workers Compensation Claims Liability per Associate per Claim Property and Casualty Insurance, Deductible Property and Casualty Insurance, Deductible Vendor Allowances recorded as credits in Cost of Goods Sold Cost of Goods Sold, Vendor Allowances Vendor Paid Cooperative Advertising Credits Vendor Paid Cooperative Advertising Credits Accounts Receivable, Earned Advertising Credits Accounts Receivable, Earned Advertising Credits Accounts Receivable, Earned Promotional Discounts Accounts Receivable, Earned Promotional Discounts Unearned income included in accrued liabilities for unearned vendor programs under long-term contracts for display and shelf space allocation. Unearned Income for Vendor Programs Advertising Expense Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets, Gross Gross Finite-Lived Intangible Assets, Gross, Total Finite-Lived Intangible Assets, Accumulated Amortization Accumulated Amortization Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net, Ending Balance Finite-Lived Intangible Assets, Net, Beginning Balance Net Net Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Finite-Lived Intangible Assets, Amortization Expense, Year Two Finite-Lived Intangible Assets, Amortization Expense, Year Three Finite-Lived Intangible Assets, Amortization Expense, Year Four Finite-Lived Intangible Assets, Amortization Expense, Year Five Available-for-sale Securities, Amortized Cost Basis Amortized Cost Available-for-sale Securities, Amortized Cost Basis, Total Available-for-sale Securities, Gross Unrealized Gains Gross Unrealized Holding Gains Available-for-sale Securities, Gross Unrealized Gains, Total Available-for-sale Securities, Gross Unrealized Losses Gross Unrealized Holding Losses Gross Unrealized Holding Losses Available-for-sale Securities, Gross Unrealized Losses, Total Available-for-sale Securities Fair Value Available-for-sale Securities, Fair Value, Total Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Amortized Cost, Due within one year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Fair Value, Due within one year Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Amortized Cost, Due after one year through five years Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Fair Value, Due after one year through five years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Amortized Cost, Due after five years through ten years Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Fair Value, Due after five years through ten years Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Amortized Cost, Due after ten years Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Fair Value, Due after ten years Available-for-sale Equity Securities, Amortized Cost Basis Amortized Cost, Equity securities Available-for-sale Securities, Equity Securities Fair Value, Equity securities Increase in Inventory had Average Cost Been Used [Member] Increase In Inventory Had Average Cost Been Used [Member] Increase in Inventory had Average Cost Been Used [Member] LIFO Inventory Amount Weighted Average Cost Inventory Amount Inventory, LIFO Reserve, Period Charge Inventory, LIFO Reserve, Period Charge Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, plant and equipment, at cost Property, Plant and Equipment, Gross, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Property, Plant and Equipment, Useful Life Accrued Rent Operating Leases, Rent Expense, Minimum Rentals Minimum annual rentals Operating Leases, Rent Expense, Contingent Rentals Contingent rentals Operating Leases, Rent Expense, Sublease Rentals Lease or sublease income Lease or sublease income Operating Leases, Rent Expense, Net Operating Leases, Rent Expense, Net, Total Operating Leases, Future Minimum Payments Due, Next Twelve Months Operating Leases, Future Minimum Payments, Due in Two Years Operating Leases, Future Minimum Payments, Due in Three Years Operating Leases, Future Minimum Payments, Due in Four Years Operating Leases, Future Minimum Payments, Due in Five Years Operating Leases, Future Minimum Payments, Due Thereafter Operating Leases, Future Minimum Payments Due Operating Leases, Future Minimum Payments Due, Total Operating Leases, Future Minimum Payments Receivable, Current Operating Leases, Future Minimum Payments Receivable, Current Operating Leases, Future Minimum Payments Receivable, in Two Years Operating Leases, Future Minimum Payments Receivable, in Two Years Operating Leases, Future Minimum Payments Receivable, in Three Years Operating Leases, Future Minimum Payments Receivable, in Three Years Operating Leases, Future Minimum Payments Receivable, in Four Years Operating Leases, Future Minimum Payments Receivable, in Four Years Operating Leases, Future Minimum Payments Receivable, in Five Years Operating Leases, Future Minimum Payments Receivable, in Five Years Operating Leases, Future Minimum Payments Receivable, Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter Operating Leases, Future Minimum Payments Receivable Operating Leases, Future Minimum Payments Receivable, Total Operating Leases, Future Minimum Payments Receivable, Total This represents the present value of the accumulated benefits of the Company's non-qualified supplemental executive retirement plan (SERP) and the non-qualified pharmacist deferred compensation plan, which are recognized in the balance sheet as a noncurrent liability. Both the SERP and the pharmacist deferred compensation plan are designed to provide retirement benefits and salary deferral opportunities because of limitations imposed by the Internal Revenue Code and the Regulations implemented by the Internal Revenue Service. The plans are unfunded and accounted for on an accrual basis. Retirement Plans, Accumulated Benefit Obligation Pension Expense Defined Benefit Plan, Benefit Obligation Benefit obligations at end of year Benefit obligations at beginning of year Defined Benefit Plan, Interest Cost Interest cost Defined Benefit Plan, Benefits Paid Benefit payments Defined Benefit Plan, Actuarial Gain (Loss) Actuarial loss Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Defined Benefit Plan, Actual Return on Plan Assets Amount of recognized gain Defined Benefit Plan, Actual Return on Plan Assets, Total Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months 2013 Defined Benefit Plan, Expected Future Benefit Payments, Year Two 2014 Defined Benefit Plan, Expected Future Benefit Payments, Year Three 2015 Defined Benefit Plan, Expected Future Benefit Payments, Year Four 2016 Defined Benefit Plan, Expected Future Benefit Payments, Year Five 2017 Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter 2018-2022 Income Taxes Paid Operating Loss Carryforwards Operating Loss Carryforwards, Total Current Federal Tax Expense (Benefit) Current State and Local Tax Expense (Benefit) Deferred Federal Income Tax Expense (Benefit) Deferred State and Local Income Tax Expense (Benefit) Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate Income taxes at federal statutory rate Income Tax Reconciliation, State and Local Income Taxes State income taxes, net of federal income tax benefit Income Tax Reconciliation, Other Adjustments Other Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Effective Income Tax Rate, Continuing Operations Effective Income Tax Rate, Continuing Operations, Total Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Accounts receivable Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Compensated Absences Compensated absences Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Other Long term employment incentives Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits Employee benefit plans Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities General liability insurance Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits Postretirement benefit obligations Deferred Tax Assets, Operating Loss Carryforwards Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, Total Deferred Tax Assets, Gross Total deferred tax assets Deferred Tax Liabilities, Inventory Inventories Inventories Deferred Tax Liabilities, Other Comprehensive Income Unrealized gains on marketable securities Unrealized gains on marketable securities Deferred Tax Liabilities, Deferred Expense, Reserves and Accruals Nondeductible accruals and other Deferred Tax Liabilities, Property, Plant and Equipment Depreciation Depreciation Deferred Tax Liabilities, Gross Total deferred tax liabilities Total deferred tax liabilities Deferred Tax Assets, Net Net deferred tax liability Income Tax Contingency [Table] Income Tax Contingency [Line Items] Unrecognized Tax Benefits Unrecognized tax benefits at end of year Unrecognized tax benefits at beginning of year Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions Additions for tax positions of prior year Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities Settlements Business Acquisition, Effective Date of Acquisition Number of stores acquired. Number of stores acquired Revenue recognized from newly acquired business. Revenue recognized from newly acquired business Business Acquisition, Purchase Price Allocation, Current Assets, Inventory Inventories Business Acquisition, Purchase Price Allocation, Current Assets, Inventory, Total Business Acquisition, Purchase Price Allocation, Equipment Equipment Business Acquisition, Purchase Price Allocation, Intangible Assets Other than Goodwill Intangible assets Business Acquisition, Purchase Price Allocation, Assets Acquired Total assets acquired Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] Retained Earnings [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income (Loss) [Member] Treasury Stock [Member] Treasury Stock [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Noncompete Agreements [Member] Non-Compete Agreements [Member] Leases Acquired In Place [Member] Lease Acquisitions [Member] Liquor Licenses [Member] Liquor Licenses [Member] Liquor Licenses [Member] Customer Lists [Member] Customer Lists [Member] Major Types of Debt and Equity Securities [Axis] Major Types Of Debt And Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Equity Securities [Member] Equity Securities [Member] U S Treasury And Government [Member] Municipal Bonds [Member] Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Type [Domain] Property, Plant and Equipment, Type [Domain] Land [Member] Land [Member] Building And Building Improvements [Member] Building and Building Improvements [Member] Equipment [Member] Equipment [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans [Domain] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Retirement savings plan [Member] Retirement Savings Plan [Member] Retirement savings plan [Member] Profit-sharing plan [Member] Profit Sharing Plan [Member] Profit-sharing plan [Member] Employee stock bonus plan [Member] Employee Stock Bonus Plan [Member] Employee stock bonus plan [Member] Deferred compensation plan [Member] Deferred Compensation Plan [Member] Deferred compensation plan [Member] Supplemental retirement plan [Member] Supplemental Retirement Plan [Member] Supplemental retirement plan [Member] Pharmacist deferred compensation plan [Member] Pharmacist Deferred Compensation Plan [Member] Pharmacist deferred compensation plan [Member]