Loss Per Share - Reconciliation of Weighted Average Shares Outstanding Used in Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Earnings Per Share [Abstract]
Net income (loss)	$ (3,260)	$ (6,243)	$ (9,624)	$ (14,494)
Weighted average number of shares - basic	31,384	30,552	31,280	30,452
Weighted average shares used for diluted earnings per share	31,384	30,552	31,280	30,452
Net (loss) income per share - basic	$ (0.10)	$ (0.20)	$ (0.31)	$ (0.48)
Net (loss) income per share - diluted	$ (0.10)	$ (0.20)	$ (0.31)	$ (0.48)