Note 7 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended								12 Months Ended
	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May. 31, 2015	Mar. 01, 2015	Nov. 30, 2014	Aug. 31, 2014	Jun. 01, 2014	Feb. 28, 2016	Mar. 01, 2015	Mar. 02, 2014
Net earnings (loss)	$ 4,574,000	$ 4,109,000	$ 4,569,000	$ 4,777,000	$ 4,841,000	$ 2,031,000	$ 4,955,000	$ 8,216,000	$ 18,029,000	$ 20,043,000	$ (42,329,000)
Weighted average common shares outstanding for basic EPS (in shares)	20,251	20,253	20,337	20,546	20,896	20,947	20,925	20,880	20,347	20,912	20,849
Net effect of dilutive options (in shares)									5	74
Weighted average shares outstanding for diluted EPS (in shares)	20,251	20,253	20,340	20,565	20,937	20,989	21,029	20,988	20,352	20,986	20,849
Basic earnings (loss) per share (in dollars per share)	$ 0.23	$ 0.20	$ 0.23	$ 0.23	$ 0.23	$ 0.10	$ 0.24	$ 0.39	$ 0.89	$ 0.96	$ (2.03)
Diluted earnings (loss) per share (in dollars per share)	$ 0.23	$ 0.20	$ 0.23	$ 0.23	$ 0.23	$ 0.10	$ 0.24	$ 0.39	$ 0.89	$ 0.96	$ (2.03)