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. 29, 2020	Dec. 01, 2019	Nov. 29, 2020	Dec. 01, 2019
Net earnings - continuing operations	$ 1,037	$ 2,806	$ 4,160	$ 7,572
Net loss - discontinued operations	(116)	(360)	(328)	(404)
Net earnings	$ 921	$ 2,446	$ 3,832	$ 7,168
Weighted average common shares outstanding for basic EPS (in shares)	20,381	20,518	20,388	20,503
Net effect of dilutive options (in shares)	53	99	54	98
Weighted average shares outstanding for diluted EPS (in shares)	20,434	20,617	20,442	20,601
Basic earnings per share - continuing operations (in dollars per share)	$ 0.05	$ 0.14	$ 0.20	$ 0.37
Basic loss per share - discontinued operations (in dollars per share)	0	(0.02)	(0.01)	(0.02)
Basic earnings per share (in dollars per share)	0.05	0.12	0.19	0.35
Diluted earnings per share - continuing operations (in dollars per share)	0.05	0.14	0.20	0.37
Diluted loss per share - discontinued operations (in dollars per share)	0	(0.02)	(0.01)	(0.02)
Diluted earnings per share (in dollars per share)	$ 0.05	$ 0.12	$ 0.19	$ 0.35