Note 8 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Nov. 29, 2015	Nov. 30, 2014	Nov. 29, 2015	Nov. 30, 2014
Net earnings	$ 4,109,000	$ 2,031,000	$ 13,455,000	$ 15,202,000
Weighted average common shares outstanding for basic EPS (in shares)	20,253	20,947	20,379	20,917
Net effect of dilutive options (in shares)		42	7	85
Weighted average shares outstanding for diluted EPS (in shares)	20,253	20,989	20,386	21,002
Basic earnings per share (in dollars per share)	$ 0.20	$ 0.10	$ 0.66	$ 0.73
Diluted earnings per share (in dollars per share)	$ 0.20	$ 0.10	$ 0.66	$ 0.72