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
	Dec. 01, 2019	Nov. 25, 2018	Dec. 01, 2019	Nov. 25, 2018
Net earnings - continuing operations	$ 2,806	$ 2,078	$ 7,572	$ 4,718
Net (loss) earnings - discontinued operations	(360)	1,613	(404)	4,841
Net earnings	$ 2,446	$ 3,691	$ 7,168	$ 9,559
Weighted average common shares outstanding for basic EPS (in shares)	20,518	20,278	20,503	20,258
Net effect of dilutive options (in shares)	99	74	98	85
Weighted average shares outstanding for diluted EPS (in shares)	20,617	20,352	20,601	20,343
Basic earnings per share - continuing operations (in dollars per share)	$ 0.14	$ 0.10	$ 0.37	$ 0.23
Basic earnings per share - discontinued operations (in dollars per share)	(0.02)	0.08	(0.02)	0.24
Basic earnings per share (in dollars per share)	0.12	0.18	0.35	0.47
Diluted earnings per share - continuing operations (in dollars per share)	0.14	0.10	0.37	0.23
Diluted earnings per share - discontinued operations (in dollars per share)	(0.02)	0.08	(0.02)	0.24
Diluted earnings per share (in dollars per share)	$ 0.12	$ 0.18	$ 0.35	$ 0.47