Note 7 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 26, 2018	Aug. 27, 2017	Aug. 26, 2018	Aug. 27, 2017
Net earnings - continuing operations	$ 1,824	$ 859	$ 2,640	$ 931
Net earnings - discontinued operations	876	(339)	3,228	983
Net earnings	$ 2,700	$ 520	$ 5,868	$ 1,914
Weighted average common shares outstanding for basic EPS (in shares)	20,253	20,236	20,248	20,236
Net effect of dilutive options (in shares)	129	14	91	11
Weighted average shares outstanding for diluted EPS (in shares)	20,382	20,250	20,339	20,247
Basic earnings per share - continuing operations (in dollars per share)	$ 0.09	$ 0.04	$ 0.13	$ 0.04
Basic earnings per share - discontinued operations (in dollars per share)	0.04	(0.01)	0.16	0.05
Basic earnings per share (in dollars per share)	0.13	0.03	0.29	0.09
Diluted earnings per share - continuing operations (in dollars per share)	0.09	0.04	0.13	0.04
Diluted earnings per share - discontinued operations (in dollars per share)	0.04	(0.01)	0.16	0.05
Diluted earnings per share (in dollars per share)	$ 0.13	$ 0.03	$ 0.29	$ 0.09