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Significant Accounting Policies (Narrative) (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 29, 2012 | Dec. 31, 2011 | Dec. 25, 2010
Cash Equivalents, at Carrying Value | $ 8,100,000 | $ 17,800,000 |
Allowance for Doubtful Accounts Receivable | 1,526,000 | 1,415,000 |
Closed store lease liabilities | 635,000 | 756,000 |
Self Insurance, Maximum of Workers Compensation Claims Liability per Associate per Claim | 2,000,000 |  |
Cost of Goods Sold, Vendor Allowances | 75,100,000 | 66,500,000 | 60,300,000
Vendor Paid Cooperative Advertising Credits | 16,400,000 | 18,200,000 | 18,800,000
Accounts Receivable, Earned Advertising Credits | 609,000 | 95,000 |
Accounts Receivable, Earned Promotional Discounts | 4,600,000 | 4,500,000 |
Unearned Income for Vendor Programs | 861,000 | 1,100,000 |
Advertising Expense | 23,500,000 | 24,700,000 | 25,100,000
Depreciation Expense [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 11,500,000 |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income | 6,800,000 |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic Earnings Per Share | $ 0.25 |  |
Prior to March 1, 2012 [Member] |  |  |
Self Insurance, Annual Maximum of Health Claims Liability per Associate | 750,000 |  |
Between March 1, 2012 to March 1, 2013 [Member] |  |  |
Self Insurance, Annual Maximum of Health Claims Liability per Associate | 1,250,000 |  |
After March 1, 2013 [Member] |  |  |
Self Insurance, Annual Maximum of Health Claims Liability per Associate | 2,000,000 |  |
Maximum [Member] |  |  |
Property and Casualty Insurance, Deductible | 1,000,000 |  |
Minimum [Member] |  |  |
Property and Casualty Insurance, Deductible | $ 100,000 |  |

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- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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