Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011	Apr. 03, 2010
Disclosure Accrued Liabilities [Abstract]
Payroll-related liabilities	$ 7,918	$ 6,446
Product warranty accrual	5,411	4,187	4,415	2,576
Purchase order commitments and receipts	2,533	1,473
Pension benefit liabilities	1,501	2,110
Professional fees payable	1,322	2,011
Freight accrual	646	1,119
Income taxes payable	2,884	1,730
Restructuring costs payable	485	1,048
Customer deposits	225	385
Value added taxes payable	258	260
Other	1,747	866
Accrued liabilities	$ 24,930	$ 21,635