Consolidated Statements of Comprehensive Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	May 29, 2022	May 30, 2021
Net earnings	$ 1,910	$ 2,745
Other comprehensive (loss) earnings, net of tax:
Other comprehensive (loss) earnings	(933)	52
Total comprehensive earnings	977	2,797
Gains on Marketable Securities [Member]
Other comprehensive (loss) earnings, net of tax:
Unrealized holding gains (losses) arising during the period	9	94
Less: reclassification adjustment for gains (losses) included in net earnings	(7)	(4)
Losses on Marketable Securities [Member]
Other comprehensive (loss) earnings, net of tax:
Unrealized holding gains (losses) arising during the period	(938)	(38)
Less: reclassification adjustment for gains (losses) included in net earnings	$ 3	$ 0