Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020
Statement of Comprehensive Income [Abstract]
Net earnings	$ 3,486	$ 15,436	$ 61,914
Other comprehensive earnings (loss):
Unrealized (loss) gain on marketable securities, net of $(96), $22 and $67 of tax (benefit) expense, respectively	(360)	80	257
Unrealized gain (loss) on foreign currency hedge, net of $633, $450 and $(129) of tax expense (benefit), respectively	2,074	1,475	(423)
Unrealized gain (loss) on pension obligation, net of $117, $32 and $(124) of tax expense (benefit), respectively	382	105	(405)
Foreign currency translation adjustments	(309)	4,375	(1,364)
Other comprehensive earnings (loss)	1,787	6,035	(1,935)
Total comprehensive earnings	5,273	21,471	59,979
Supplemental Income Statement Elements [Abstract]
Unrealized (loss) gain on marketable securities, Tax	(96)	22	67
Unrealized gain (loss) on foreign currency hedge, tax	633	450	(129)
Unrealized gain (loss) on pension obligation, tax	$ 117	$ 32	$ (124)