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Income Taxes (Significant Items Comprising Deferred Tax Assets) (Details) - USD ($) | Aug. 29, 2015 | Aug. 30, 2014
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Income Tax Disclosure [Abstract] |  |  |
Warranty reserves | $ 4,288,000 |  | $ 3,620,000
Self-insurance reserve | 2,378,000 |  | 1,882,000
Accrued vacation | 1,938,000 |  | 1,805,000
Inventory | (2,383,000) |  | (1,682,000)
Deferred compensation | 1,175,000 |  | 1,199,000
Other | 2,599,000 |  | 2,817,000
Total net current deferred income tax asset | 9,995,000 |  | 9,641,000
Postretirement health care benefits | 12,792,000 |  | 13,634,000
Deferred compensation | 9,582,000 |  | 9,565,000
Tax credits and NOL carryforwards | 140,000 | [1] | 261,000
Unrecognized tax benefit | 726,000 |  | 895,000
Depreciation | (1,338,000) |  | (992,000)
Other | 92,000 |  | 666,000
Total net noncurrent deferred income tax asset | 21,994,000 |  | 24,029,000
Total deferred income tax assets | 31,989,000 |  | $ 33,670,000
State NOL carryforward | $ 140,000 |  |
[1] | At August 29, 2015, NOL carryforwards included $140,000 of state NOLs that will begin to expire in Fiscal 2021. We have evaluated all the positive and negative evidence and consider it more likely than not that these carryforwards can be realized.

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