Note 13 - Selected Quarterly Financial Data (Unaudited) (Detail) - Selected Quarterly Financial Data (Unaudited) (USD $)	3 Months Ended						4 Months Ended		12 Months Ended
	Nov. 04, 2012	Aug. 12, 2012	May 20, 2012	Nov. 06, 2011	Aug. 14, 2011	May 22, 2011	Mar. 03, 2013	Feb. 26, 2012	Mar. 03, 2013	Feb. 26, 2012
Revenues	$ 20,060,000	$ 20,642,000	$ 20,314,000	$ 19,278,000	$ 19,513,000	$ 19,562,000	$ 25,850,000	$ 23,884,000	$ 86,866,000	$ 82,237,000
Operating costs and expenses, net	19,176,000	19,653,000	19,491,000	18,973,000	19,203,000	19,026,000	25,456,000	24,208,000	21,935,000	21,298,000
Operating income	884,000	989,000	823,000	305,000	310,000	536,000	394,000	(324,000)	3,090,000	827,000
Net income (loss)	$ 125,000	$ 206,000	$ 39,000	$ (93,000)	$ (257,000)	$ (217,000)	$ (508,000)	$ (1,113,000)	$ (138,000)	$ (1,680,000)
Basic net income (loss) per share (in Dollars per share)	$ 0.04	$ 0.07	$ 0.01	$ (0.03)	$ (0.09)	$ (0.07)	$ (0.17)	$ (0.38)	$ (0.05)	$ (0.57)
Fully diluted net income (loss) per share (in Dollars per share)	$ 0.04	$ 0.07	$ 0.01	$ (0.03)	$ (0.09)	$ (0.07)	$ (0.17)	$ (0.38)	$ (0.05)	$ (0.57)