Selected Quarterly Financial Data (Unaudited) - Quarterly Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 26, 2023	Nov. 27, 2022	Aug. 28, 2022	May 29, 2022	Feb. 27, 2022	Nov. 28, 2021	Aug. 29, 2021	May 30, 2021	Feb. 26, 2023	Feb. 27, 2022	Feb. 28, 2021
Net sales	$ 13,530	$ 13,867	$ 13,875	$ 12,783	$ 12,502	$ 13,864	$ 13,618	$ 13,594
Gross profit	3,851	4,444	4,086	4,092	4,198	3,836	4,411	5,472	$ 16,473	$ 17,917	$ 13,191
Net earnings - continuing operations	$ 4,706	$ 2,230	$ 1,885	$ 1,910	$ 1,956	$ 1,741	$ 2,022	$ 2,745	$ 10,731	$ 8,464	$ 5,192
Basic earnings per share (in dollars per share)	$ 0.23	$ 0.11	$ 0.09	$ 0.09	$ 0.10	$ 0.09	$ 0.10	$ 0.13	$ 0.52	$ 0.41	$ 0.24
Diluted earnings per share (in dollars per share)	$ 0.23	$ 0.11	$ 0.09	$ 0.09	$ 0.10	$ 0.08	$ 0.10	$ 0.13	$ 0.52	$ 0.41	$ 0.24
Weighted average common shares outstanding for basic EPS (in shares)	20,471,000	20,471,000	20,461,000	20,458,000	20,458,000	20,450,000	20,397,000	20,383,000	20,465	20,422	20,387
Weighted average shares outstanding for diluted EPS (in shares)	20,518,000	20,510,000	20,503,000	20,504,000	20,508,000	20,503,000	20,485,000	20,710,000	20,509	20,551	20,478