Employee Benefit Plans (Details) (USD $)	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Maximum loss per emolyee under insurance claims	$ 200,000
Medical claims expenses	6,000,000	5,500,000	3,400,000
401K Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent	50.00%	20.00%
Maximum employer match as a percentage of employee gross pay	5.00%	3.00%
Defined Contribution Plan, Employers Matching Contribution, Vesting Period	4 years
Employer matching contribution expense	$ 321,000	$ 188,000	$ 117,000