Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance at Feb. 26, 2012	$ 2,079	$ 157,115	$ 181,941	$ 2,077	$ (1)
Balance (in Shares) at Feb. 26, 2012	20,795,591				158
Net earnings (loss)			16,961			16,961
Foreign currency translation				(1,390)		75
Unrealized gain (loss) on marketable securities, net of tax				(58)
Stock options exercised	4	760
Stock options exercised (in Shares)	35,987					35,987
Stock-based compensation		915
Repurchase of treasury shares					(93)
Repurchase of treasury shares (in Shares)					3,908
Cash dividends per share			(60,388)
Balance at Mar. 03, 2013	2,083	158,790	138,514	629	(94)
Balance (in Shares) at Mar. 03, 2013	20,831,578				4,066
Net earnings (loss)			(42,329)			(42,329)
Foreign currency translation				420		420
Unrealized gain (loss) on marketable securities, net of tax				172
Stock options exercised	5	1,157
Stock options exercised (in Shares)	51,266					51,266
Stock-based compensation		1,730
Repurchase of treasury shares (in Shares)					8
Cash dividends per share			(60,534)
Balance at Mar. 02, 2014	2,088	161,677	35,651	1,221	(94)	200,543
Balance (in Shares) at Mar. 02, 2014	20,882,844				4,074
Net earnings (loss)			20,043			20,043
Foreign currency translation				185		185
Unrealized gain (loss) on marketable securities, net of tax				62
Stock options exercised	8	1,724
Stock options exercised (in Shares)	79,800					79,800
Stock-based compensation		1,418
Repurchase of treasury shares					(2,738)
Repurchase of treasury shares (in Shares)					126,567
Cash dividends per share			(39,646)
Balance at Mar. 01, 2015	$ 2,096	$ 164,819	$ 16,048	$ 1,468	$ (2,832)	$ 181,599
Balance (in Shares) at Mar. 01, 2015	20,962,644				130,641