Consolidated Statements of Shareholders' Equity and Comprehensive Income (Loss) Statement (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' equity, beginning balance at Mar. 29, 2010	$ 121,498	$ 513	$ 39,027	$ 81,921	$ 37
Shares outstanding, beginning balance at Mar. 29, 2010		10,253,458
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	(7,222)			(7,222)
Share-based compensation expense	1,952		1,952
Tax benefit on share-based compensation plans	281		281
Stock Issued During Period, Shares, Restricted Stock Award, Gross		58,653
Stock Issued During Period, Value, Restricted Stock Award, Gross	0	3	(3)
Shares surrendered for payroll taxes (shares)		(4,934)
Shares surrendered for payroll taxes	(198)	(1)	(197)
Total other comprehensive income (loss)	(182)
Other comprehensive income, net of tax	(182)				(182)
Net income	20,314			20,314
Stockholders' equity, ending balance at Apr. 03, 2011	136,443	515	41,060	95,013	(145)
Shares outstanding, ending balance at Apr. 03, 2011		10,307,177
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	(6,659)			(6,659)
Share-based compensation expense	1,350		1,350
Tax benefit on share-based compensation plans	698		698
Stock Issued During Period, Shares, Restricted Stock Award, Gross		18,663
Stock Issued During Period, Value, Restricted Stock Award, Gross	0	1	(1)
Shares surrendered for payroll taxes (shares)		(3,980)
Shares surrendered for payroll taxes	(150)	0	(150)
Stock Options Exercised (shares)		85,332
Stock Options Exercised	1,466	5	1,461
ESPP Shares Issued (shares)		23,682
ESPP Shares Issued	752	1	751
Total other comprehensive income (loss)	22				22
Net income	22,685			22,685
Stockholders' equity, ending balance at Apr. 01, 2012	156,607	522	45,169	111,039	(123)
Shares outstanding, ending balance at Apr. 01, 2012		10,430,874
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared	(7,191)			(7,191)
Share-based compensation expense	1,630		1,630
Tax benefit on share-based compensation plans	510		510
Stock Issued During Period, Shares, Restricted Stock Award, Gross		6,120
Stock Issued During Period, Value, Restricted Stock Award, Gross	(1)	0	(1)
Stock Options Exercised (shares)	27,999	27,999
Stock Options Exercised	515	1	514
ESPP Shares Issued (shares)		30,434
ESPP Shares Issued	959	2	957
Total other comprehensive income (loss)	17				17
Net income	17,126			17,126
Stockholders' equity, ending balance at Mar. 31, 2013	$ 170,172	$ 525	$ 48,779	$ 120,974	$ (106)
Shares outstanding, ending balance at Mar. 31, 2013		10,495,427