Consolidated Statements of Comprehensive Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 30, 2020	Sep. 01, 2019	Aug. 30, 2020	Sep. 01, 2019
Net earnings	$ 954	$ 2,135	$ 2,911	$ 4,722
Other comprehensive (loss) earnings, net of tax:
Other comprehensive (loss) earnings	(203)	193	1	539
Total comprehensive earnings	751	2,328	2,912	5,261
Gains on Marketable Securities [Member]
Other comprehensive (loss) earnings, net of tax:
Unrealized holding gains (losses) arising during the period	109	225	397	569
Less: reclassification adjustment for gains (losses) included in net earnings	(37)	(15)	(54)	(23)
Losses on Marketable Securities [Member]
Other comprehensive (loss) earnings, net of tax:
Unrealized holding gains (losses) arising during the period	(275)	(24)	(342)	(27)
Less: reclassification adjustment for gains (losses) included in net earnings		$ 7		$ 20