CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at Dec. 28, 2013	$ 198	$ 30,960	$ 28,710	$ (244)	$ (471)	$ 59,153
Balance (in shares) at Dec. 28, 2013	19,845
Increase (Decrease) in Stockholders' Equity
Net Income (loss)			10,561			10,561
Change in fair value of interest rate swaps, net of tax				110		110
Stock-based compensation expense		1,697				1,697
Tax benefit from equity awards		332				332
Issuance of common stock under employee stock plans, net of shares withheld for payroll taxes	$ 2	111				113
Issuance of common stock under employee stock plans, net of shares withheld for payroll taxes (in shares)	116
Balance at Dec. 27, 2014	$ 200	33,100	39,271	(134)	(471)	71,966
Balance (in shares) at Dec. 27, 2014	19,961
Increase (Decrease) in Stockholders' Equity
Net Income (loss)			(20,783)			(20,783)
Change in fair value of interest rate swaps, net of tax				62		62
Settlement of interest rate swaps, net of tax				$ 72		72
Stock-based compensation expense		1,489				1,489
Issuance of common stock under employee stock plans, net of shares withheld for payroll taxes		(318)				(318)
Issuance of common stock under employee stock plans, net of shares withheld for payroll taxes (in shares)	18
Balance at Dec. 26, 2015	$ 200	34,271	18,488		(471)	$ 52,488
Balance (in shares) at Dec. 26, 2015	19,979					19,979
Increase (Decrease) in Stockholders' Equity
Net Income (loss)			(30,249)			$ (30,249)
Stock-based compensation expense		1,650				1,650
Deferred tax asset shortfall from equity awards		(155)				(155)
Issuance of common stock under employee stock plans, net of shares withheld for payroll taxes		(45)				(45)
Issuance of common stock under employee stock plans, net of shares withheld for payroll taxes (in shares)	61
Balance at Dec. 31, 2016	$ 200	$ 35,721	$ (11,761)		$ (471)	$ 23,689
Balance (in shares) at Dec. 31, 2016	20,040					20,040