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Income Taxes (Significant Items Comprising Deferred Tax Assets) (Details) - USD ($) | Aug. 27, 2016 | Aug. 29, 2015
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Income Tax Disclosure [Abstract] |  |
Deferred compensation | $ 9,609,000 | $ 10,757,000
Warranty reserves | 4,729,000 | 4,288,000
Postretirement health care benefits | 2,262,000 | 12,792,000
Self-insurance reserve | 2,214,000 | 2,378,000
Accrued vacation | 2,006,000 | 1,938,000
Stock-based compensation | 1,030,000 | 1,239,000
Unrecognized tax benefit | 698,000 | 726,000
Other | 1,785,000 | 1,592,000
Deferred tax assets | 24,333,000 | 35,710,000
Inventory | (1,930,000) | (2,383,000)
Depreciation | (3,650,000) | (1,338,000)
Deferred tax liabilities | 5,580,000 | 3,721,000
Deferred tax assets, net | 18,753,000 | $ 31,989,000
State NOL carryforward | $ 95,000 |

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- Definition Amount, before allocation of valuation allowances, of deferred tax asset attributable to deductible differences from reserves and accruals, compensation and benefit costs, and other provisions, reserves, and allowances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Asset -URI http://asc.fasb.org/extlink&oid=6510090 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32621-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from warranty reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32632-109319 + Details
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