Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Mar. 28, 2010	$ 88	$ 52,003	$ 16,797	$ 616	$ (25,192)	$ 44,312
Balance (in Shares) at Mar. 28, 2010	8,773,241				3,178,793
Shares issued in connection with share-based compensation plans		208				208
Shares issued in connection with share-based compensation plans (in Shares)	64,750					64,750
Withholding tax on net share settlement of employee stock options						0
Repurchase of common stock					(9,254)	(9,254)
Repurchase of common stock (in Shares)					576,485
Income tax benefit on stock option exercises		356				356
Share-based compensation		378				378
Unrealized gains (losses) on marketable securities, net of deferred income taxes				(135)		(135)
Net income			2,213			2,213
Balance at Mar. 27, 2011	88	52,945	19,010	481	(34,446)	38,078
Balance (in Shares) at Mar. 27, 2011	8,837,991				3,755,278
Shares issued in connection with share-based compensation plans	1	64				65
Shares issued in connection with share-based compensation plans (in Shares)	17,272					25,500
Withholding tax on net share settlement of employee stock options						0
Repurchase of common stock					(15,867)	(15,867)
Repurchase of common stock (in Shares)					736,208
Income tax benefit on stock option exercises		113				113
Share-based compensation		274				274
Unrealized gains (losses) on marketable securities, net of deferred income taxes				16		16
Net income			6,158			6,158
Balance at Mar. 25, 2012	89	53,396	25,168	497	(50,313)	28,837
Balance (in Shares) at Mar. 25, 2012	8,855,263				4,491,486
Shares issued in connection with share-based compensation plans	1	388				389
Shares issued in connection with share-based compensation plans (in Shares)	102,918					192,500
Withholding tax on net share settlement of employee stock options		(982)				(982)
Repurchase of common stock					(3,085)	(3,085)
Repurchase of common stock (in Shares)					88,077
Income tax benefit on stock option exercises		1,062				1,062
Share-based compensation		627				627
Unrealized gains (losses) on marketable securities, net of deferred income taxes				(168)		(168)
Net income			7,468			7,468
Balance at Mar. 31, 2013	$ 90	$ 54,491	$ 32,636	$ 329	$ (53,398)	$ 34,148
Balance (in Shares) at Mar. 31, 2013	8,958,181				4,579,563