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Summary of Significant Accounting Policies and Related Data (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Mar. 03, 2018 | Mar. 04, 2017 | Feb. 27, 2016 | Mar. 04, 2018
Accounting Policies [Line Items] |  |  |  |
Reporting period monthly lag | 2 months |  |  |
Fiscal time period | P52W | P53W | P52W |
Percentage of net sales recorded on a percentage of completion basis | 22.00% | 26.00% | 25.00% |
Research and development expense | $ 14,000 | $ 8,600 | $ 8,000 |
Retained earnings | 373,259 | 341,996 |  |
Cost of Sales |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Research and development expense | 1,500 | 2,200 | 2,400 |
Selling, general and administrative expenses |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Advertising expense | $ 1,400 | $ 1,100 | $ 1,200 |
Minimum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Performance Period For Percentage Of Completion Contracts | 12 months |  |  |
Minimum | Difference between Revenue Guidance in Effect before and after Topic 606 | ASU 2014-09 |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Retained earnings |  |  |  | $ 3,000
Maximum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Performance Period For Percentage Of Completion Contracts | 18 months |  |  |
Maximum | Difference between Revenue Guidance in Effect before and after Topic 606 | ASU 2014-09 |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Retained earnings |  |  |  | $ 5,000

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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