Consolidated Statements of Comprehensive Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 28, 2022	Aug. 29, 2021	Aug. 28, 2022	Aug. 29, 2021
Net earnings	$ 1,885	$ 2,022	$ 3,795	$ 4,767
Other comprehensive earnings, net of tax:
Other comprehensive loss	(667)	(61)	(1,600)	(9)
Total comprehensive earnings	1,218	1,961	2,195	4,758
Gains on Marketable Securities [Member]
Other comprehensive earnings, net of tax:
Unrealized holding gains arising during the period	24	10	33	104
Less: reclassification adjustment for gains included in net earnings	0	(5)	(7)	(9)
Unrealized holding losses arising during the period	24	10	33	104
Losses on Marketable Securities [Member]
Other comprehensive earnings, net of tax:
Unrealized holding gains arising during the period	(696)	(66)	(1,634)	(104)
Less: reclassification adjustment for gains included in net earnings	5	0	8	0
Unrealized holding losses arising during the period	$ (696)	$ (66)	$ (1,634)	$ (104)