Income Taxes - Unrecognized Tax Benefits (Details) (USD $)	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Income Tax Disclosure [Abstract]
Beginning unrecognized tax benefits balance	$ 8,613,000	$ 8,016,000
Gross increases for tax positions of prior years	109,000	78,000
Gross decreases for tax positions of prior years	(581,000)	0
Gorss increases for tax positions for current year	1,069,000	519,000
Ending unrecognized tax benefits balance	9,210,000	8,613,000
Unrecognized tax positions that offset deferred tax assets	4,100,000	2,700,000
Amount of decrease possible in next twelve months	$ 600,000