Note 7 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 01, 2019	Aug. 26, 2018	Sep. 01, 2019	Aug. 26, 2018
Net earnings - continuing operations	$ 2,052	$ 1,824	$ 4,766	$ 2,640
Net earnings (loss) - discontinued operations	83	876	(44)	3,228
Net earnings	$ 2,135	$ 2,700	$ 4,722	$ 5,868
Weighted average common shares outstanding for basic EPS (in shares)	20,499	20,253	20,495	20,248
Net effect of dilutive options (in shares)	102	129	98	91
Weighted average shares outstanding for diluted EPS (in shares)	20,601	20,382	20,593	20,339
Basic earnings per share - continuing operations (in dollars per share)	$ 0.10	$ 0.09	$ 0.23	$ 0.13
Basic earnings per share - discontinued operations (in dollars per share)		0.04		0.16
Basic earnings per share (in dollars per share)	0.10	0.13	0.23	0.29
Diluted earnings per share - continuing operations (in dollars per share)	0.10	0.09	0.23	0.13
Diluted earnings per share - discontinued operations (in dollars per share)		0.04		0.16
Diluted earnings per share (in dollars per share)	$ 0.10	$ 0.13	$ 0.23	$ 0.29