Revenue, Receivables and Contract Assets and Liabilities (Details 6) - USD ($) $ in Thousands	12 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020
Revenue from Contract with Customer [Abstract]
Accounts Receivable, Allowance for Credit Loss	$ (2,132)	$ (1,947)	$ (2,469)
Additions charged to costs and expenses	729	389
Deductions from allowance, net of recoveries	(514)	(887)
Other deductions	(30)	(24)
Accounts Receivable, Allowance for Credit Loss	$ 2,132	$ 1,947	$ 2,469