Note 8 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	May 27, 2018	May 28, 2017
Net earnings	$ 3,168	$ 1,394
Weighted average common shares outstanding for basic EPS (in shares)	20,242,000	20,235,000
Net effect of dilutive options (in shares)	54,000	9,000
Weighted average shares outstanding for diluted EPS (in shares)	20,296,000	20,244,000
Basic earnings per share (in dollars per share)	$ 0.16	$ 0.07
Diluted earnings per share (in dollars per share)	$ 0.16	$ 0.07