Organization and Summary of Significant Accounting Policies - Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2016	Jun. 27, 2015	Jun. 25, 2016	Jun. 27, 2015
Basic Earnings (Loss) Per Share:
Net loss	$ (278)	$ (1,951)	$ (1,296)	$ (16,586)
Weighted average number of common shares	19,628	19,566	19,616	19,574
Earnings per common share (in dollars per share)	$ (0.01)	$ (0.10)	$ (0.07)	$ (0.85)
Diluted Earnings (Loss) Per Share:
Net income	$ (278)	$ (1,951)	$ (1,296)	$ (16,586)
Weighted average number of common shares	19,628	19,566	19,616	19,574
Adjusted weighted average number of common shares	19,628	19,566	19,616	19,574
Earnings per common share (in dollars per share)	$ (0.01)	$ (0.10)	$ (0.07)	$ (0.85)