Note 7 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 27, 2022	Nov. 28, 2021	Nov. 27, 2022	Nov. 28, 2021
Net earnings	$ 2,230	$ 1,741	$ 6,025	$ 6,508
Weighted average common shares outstanding for basic EPS (in shares)	20,471	20,450	20,463	20,410
Net effect of dilutive options (in shares)	39	53	43	156
Weighted average shares outstanding for diluted EPS (in shares)	20,510	20,503	20,506	20,566
Basic earnings per share (in dollars per share)	$ 0.11	$ 0.09	$ 0.29	$ 0.32
Diluted earnings per share (in dollars per share)	$ 0.11	$ 0.08	$ 0.29	$ 0.32