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. 29, 2009	$ 83	$ 49,001	$ 11,228	$ 335	$ (18,798)	$ 41,849
Balance (in Shares) at Mar. 29, 2009	8,305,683				2,693,806
Shares issued in connection with exercise of employee stock options	5	1,528				1,533
Shares issued in connection with exercise of employee stock options (in Shares)	467,558
Repurchase of common stock					(6,394)	(6,394)
Repurchase of common stock (in Shares)					484,987
Income tax benefit on stock option exercises		1,046				1,046
Share-based compensation		428				428
Unrealized gain on marketable securities, net of deferred income taxes				281		281
Net income			5,569			5,569
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 exercise of employee stock options		208				208
Shares issued in connection with exercise of employee stock options (in Shares)	64,750
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 gain 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 exercise of employee stock options	1	64				65
Shares issued in connection with exercise of employee stock options (in Shares)	17,272
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 gain 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