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Summary of Significant Accounting Policies and Related Data (Details Textual) $ in Thousands	12 Months Ended
	Feb. 25, 2023 USD ($) business	Feb. 26, 2022 USD ($)	Feb. 27, 2021 USD ($)
Accounting Policies [Line Items]
Fixed-price contracts, number of businesses \| business	3
Fixed-price contracts, percentage of total revenue	36.00%
Number of businesses \| business	1
Percentage of total revenue	19.00%
Research and development expense	$ 25,500	$ 17,300	$ 15,300
Intangible Asset Life Minimum	18 months
Intangible Asset Life Maximum	30 years
Other than Temporary Impairment Losses, Investments	$ 3,000
Impairment Expense	0	36,735
Asset impairment	0	21,497	1,400
Selling, general and administrative expenses
Accounting Policies [Line Items]
Advertising expense	$ 1,200	$ 1,200	$ 1,100
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
Recognized at shipment
Accounting Policies [Line Items]
Percentage of total revenue	45.00%