Consolidated Statements of Comprehensive Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 26, 2023	Nov. 27, 2022	Nov. 26, 2023	Nov. 27, 2022
Net earnings	$ 1,203	$ 2,230	$ 4,803	$ 6,025
Other comprehensive (loss) earnings, net of tax:
Other comprehensive earnings (loss)	490	(718)	1,315	(2,318)
Total comprehensive earnings	1,693	1,512	6,118	3,707
Gains on Marketable Securities [Member]
Other comprehensive (loss) earnings, net of tax:
Unrealized holding gains arising during the period	484	30	1,186	63
Less: reclassification adjustment for gains included in net earnings	0	0	0	(7)
Losses on Marketable Securities [Member]
Net earnings	1,203	2,230	4,803	6,025
Other comprehensive (loss) earnings, net of tax:
Unrealized holding gains arising during the period	(2)	(773)	(110)	(2,407)
Less: reclassification adjustment for gains included in net earnings	$ 8	$ 25	$ 239	$ 33