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Summary of Significant Accounting Policies (Details Textual) (USD $) | 12 Months Ended |
--- | --- | ---
Sep. 29, 2012 Segment Banks | Sep. 24, 2011 | Sep. 25, 2010 | Sep. 26, 2009
Cash and Cash Equivalents [Line Items] |  |  |  |
Demand deposits | $ 4,683,410 | $ 12,421,250 | $ 57,854,587 | $ 59,535,848
Income Statement Location [Line Items] |  |  |  |
Other income, net | 3,527,065 | 4,159,445 | 4,224,412 |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of Operating Segments | 203 |  |  |
Retained earnings | 341,964,231 | 313,879,289 |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Outstanding checks in excess of bank balances | 11,400,000 | 0 |  |
Number of banks | 8 |  |  |
FDIC insurance limit per bank | 250,000 |  |  |
Total depreciation expense | 90,600,000 | 80,400,000 | 78,000,000 |
Capitalized loan and leasehold costs | 10,200,000 | 12,200,000 |  |
Accumulated amortization | 25,700,000 | 21,200,000 |  |
Costs to be amortized over the life of the underlying debt instrument or lease, per year. | 4,400,000 |  |  |
Liability coverage per occurrence for workers compensation | 750,000 |  |  |
Liability coverage for general liability | 500,000 |  |  |
Liability coverage per covered person for medical care benefits | 325,000 |  |  |
Company's self insurance reserves | 26,700,000 | 24,800,000 |  |
Undrawn letters of credit | 8,200,000 |  |  |
Gross unrecognized tax benefits | 149,400 | 149,500 |  |
Maximum tax benefit recognized greater than fifty percent | 50.00% |  |  |
Accrued for interest and penalties | 55,000 | 200,000 |  |
Advertising and promotion expenses, net of vendor allowances | 14,100,000 | 13,900,000 | 14,800,000 |
Depreciation expense included in costs of goods sold totaled | 9,200,000 | 5,400,000 | 6,300,000 |
Fluid dairy revenues recognition | 68.00% |  |  |
Vendor allowances applied as a reduction of merchandise costs | 114,300,000 | 109,900,000 | 105,200,000 |
Vendor advertising allowances recorded as a reduction of advertising expense | 13,200,000 | 13,100,000 | 13,000,000 |
Maximum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Expiry date of undrawn letters of credit, End | Oct. 31, 2013 |  |  |
Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Expiry date of undrawn letters of credit, Start | Nov. 30, 2012 |  |  |
Building [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Useful life of property, plant and equipment | 30 years |  |  |
Store, office and warehouse equipment [Member] | Maximum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Useful life of property, plant and equipment | 10 years |  |  |
Store, office and warehouse equipment [Member] | Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Useful life of property, plant and equipment | 3 years |  |  |
Transportation equipment [Member] | Maximum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Useful life of property, plant and equipment | 5 years |  |  |
Transportation equipment [Member] | Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Useful life of property, plant and equipment | 3 years |  |  |
Leasehold improvements [Member] | Maximum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Useful life of property, plant and equipment | 30 years |  |  |
Leasehold improvements [Member] | Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Useful life of property, plant and equipment | 3 years |  |  |
Georgia [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of Operating Segments | 74 |  |  |
North Carolina [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of Operating Segments | 69 |  |  |
South Carolina [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of Operating Segments | 36 |  |  |
Tennessee [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of Operating Segments | 21 |  |  |
Virginia [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of Operating Segments | 2 |  |  |
Alabama [Member] |  |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of Operating Segments | 1 |  |  |
Interest income [Member] |  |  |  |
Income Statement Location [Line Items] |  |  |  |
Other income, net | 0 | 100,000 | 800,000 |
Demand deposits [Member] |  |  |  |
Cash and Cash Equivalents [Line Items] |  |  |  |
Demand deposits | $ 3,100,000 |  |  |

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