CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 28, 2013	Mar. 30, 2013
Statement of Financial Position [Abstract]
Trade receivables, allowances	$ 842	$ 712
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	104,306	102,901
Finite-Lived Intangible Assets, Accumulated Amortization	$ 20,235	$ 19,880
Preferred stock, without par value	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock, without par value	$ 0	$ 0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, issued	31,321,000	30,704,000
Common stock, outstanding	31,321,000	30,704,000