Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Feb. 28, 2021	20,965,144				582,268
Balance at Feb. 28, 2021	$ 2,096	$ 170,038	$ (25,063)	$ (336)	$ (10,794)
Net earnings	0	0	2,745	0	0	$ 2,745
Unrealized loss on marketable securities, net of tax	0	0	0	52	0
Stock-based compensation	0	64	0	0	0
Cash dividends	$ 0	0	(2,038)	0	$ 0
Balance (in shares) at May. 30, 2021	20,965,144				582,268
Balance at May. 30, 2021	$ 2,096	170,102	(24,356)	(284)	$ (10,794)
Balance (in shares) at Feb. 27, 2022	20,965,144				506,934
Balance at Feb. 27, 2022	$ 2,096	169,665	(24,767)	(1,965)	$ (9,397)	135,632
Net earnings	0	0	1,910	0	0	1,910
Unrealized loss on marketable securities, net of tax	0	0	0	(933)	0
Stock-based compensation	0	85	0	0	0
Cash dividends	$ 0	0	(2,046)	0	$ 0
Balance (in shares) at May. 29, 2022	20,965,144				506,934
Balance at May. 29, 2022	$ 2,096	$ 169,750	$ (24,903)	$ (2,898)	$ (9,397)	$ 134,648