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Property, Plant and Equipment and Assets Held for Sale Property, Plant, and Equipment (Narrative) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
May. 30, 2015 | Mar. 01, 2014 | Aug. 29, 2015 | Aug. 30, 2014 | Aug. 31, 2013
Property, Plant and Equipment [Line Items] |  |  |  |  |
Purchases of property and equipment |  |  | $ 16,573,000 | $ 10,476,000 | $ 4,422,000
Proceeds from sale |  | $ 2,300,000 |  |  |
Gain on sale |  | $ (629,000) |  |  |
Middlebury, IN [Member] |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Purchases of property and equipment | $ 5,400,000 |  |  |  |
Waverly, IA [Member] |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Purchases of property and equipment | $ 850,000 |  |  |  |

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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