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. 25, 2018	Nov. 26, 2017	Nov. 25, 2018	Nov. 26, 2017
Net earnings - continuing operations	$ 2,078	$ 344	$ 4,718	$ 1,275
Net earnings - discontinued operations	1,613	372	4,841	1,355
Net earnings	$ 3,691	$ 716	$ 9,559	$ 2,630
Weighted average common shares outstanding for basic EPS (in shares)	20,278	20,237	20,258	20,236
Net effect of dilutive options (in shares)	74	24	85	16
Weighted average shares outstanding for diluted EPS (in shares)	20,352	20,261	20,343	20,252
Basic earnings per share - continuing operations (in dollars per share)	$ 0.10	$ 0.02	$ 0.23	$ 0.06
Basic earnings per share - discontinued operations (in dollars per share)	0.08	0.02	0.24	0.07
Basic earnings per share (in dollars per share)	0.18	0.04	0.47	0.13
Diluted earnings per share - continuing operations (in dollars per share)	0.10	0.02	0.23	0.06
Diluted earnings per share - discontinued operations (in dollars per share)	0.08	0.02	0.24	0.07
Diluted earnings per share (in dollars per share)	$ 0.18	$ 0.04	$ 0.47	$ 0.13