CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 26, 2015	Mar. 28, 2015
Statement of Financial Position [Abstract]
Trade receivables, allowances	$ 832	$ 712
Preferred stock, without par value
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	31,448,000	30,704,000
Common stock, outstanding	31,448,000	30,704,000