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v3.22.1

Summary of Significant Accounting Policies and Related Data (Details Textual) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Apr. 22, 2022 USD ($) shares | Feb. 26, 2022 USD ($) business shares | Feb. 27, 2021 USD ($) shares | Feb. 29, 2020 USD ($) shares
Accounting Policies [Line Items] |  |  |  |
Fixed-price contracts, number of businesses | business |  | 3 |  |
Fixed-price contracts, percentage of total revenue |  | 38.00% |  |
Number of businesses | business |  | 1 |  |
Percentage of total revenue |  | 20.00% |  |
Research and development expense |  | $ 17,300 | $ 15,300 | $ 16,600
Share repurchases, shares | shares |  | 2,309,000 | 1,177,000 | 687,000
Share repurchases, value |  | $ 100,414 | $ 32,878 | $ 25,140
Intangible Asset Life Minimum |  | 18 months |  |
Intangible Asset Life Maximum |  | 30 years |  |
Other than Temporary Impairment Losses, Investments |  | $ 3,000 |  |
Impairment Expense |  | 36,735 |  |
Asset impairment on property, plant and equipment |  | $ 21,497 | 1,400 | 0
Building and Building Improvements [Member] | Minimum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives |  | 10 years |  |
Building and Building Improvements [Member] | Maximum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives |  | 25 years |  |
Machinery and Equipment [Member] | Minimum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives |  | 3 years |  |
Machinery and Equipment [Member] | Maximum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives |  | 10 years |  |
Furniture and Fixtures [Member] | Minimum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives |  | 3 years |  |
Furniture and Fixtures [Member] | Maximum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives |  | 7 years |  |
Cost of Sales |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Research and development expense |  | $ 9,500 | 9,900 | 8,000
Selling, general and administrative expenses |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Advertising expense |  | $ 1,200 | $ 1,100 | $ 1,400
Subsequent Event |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Share repurchases, shares | shares | 1,571,139 |  |  |
Share repurchases, value | $ 74,300 |  |  |
Recognized at shipment |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Percentage of total revenue |  | 42.00% |  |

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