Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Apr. 01, 2017
Disclosure Accrued Liabilities [Abstract]
Payroll-related liabilities	$ 10,318	$ 6,335
Product Warranty Accrual, Current	4,929	3,394
Customer Deposits, Current	6,221	1,242
Purchase order commitments and receipts	3,631	2,522
Accrued Professional Fees, Current	1,024	734
Long-term Debt, Current Maturities	410	434
Restructuring Reserve	2,466	4,996
Other	3,051	2,529
Accrued liabilities	$ 32,050	$ 22,186