EARNINGS PER SHARE (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
EARNINGS PER SHARE
Net income (loss)	$ (4,774,000)	$ (7,997,000)	$ (3,158,000)	$ (18,505,000)	$ (5,525,000)	$ (6,376,000)	$ 1,031,000	$ (1,208,000)	$ (34,434,000)	$ (12,078,000)	$ 2,081,000
Net income (loss) per share - Basic (in dollars per share)	$ (0.23)	$ (0.38)	$ (0.17)	$ (1.43)	$ (0.43)	$ (0.49)	$ 0.08	$ (0.09)	$ (1.87)	$ (0.94)	$ 0.16
Net income (loss) per share - Diluted (in dollars per share)	$ (0.23)	$ (0.38)	$ (0.17)	$ (1.43)	$ (0.43)	$ (0.49)	$ 0.08	$ (0.09)	$ (1.87)	$ (0.94)	$ 0.16
Weighted average common shares outstanding									18,365,000	12,887,000	12,838,000
Dilutive effect of stock options and restrictive stock awards (in shares)											46,000
Weighted average common and potentially dilutive common shares									18,365,000	12,887,000	12,884,000
Potential exercise of stock options outstanding and exercisable included in diluted weighted average shares											4,174
Stock options
Anti-dilutive shares
Anti-dilutive securities excluded from the computation of diluted earnings (in shares)											736,675
Stock options and unvested restricted common shares
Anti-dilutive shares
Anti-dilutive securities excluded from the computation of diluted earnings (in shares)									1,450,167	1,170,009	1,062,330
Unvested restricted common shares
Anti-dilutive shares
Anti-dilutive securities excluded from the computation of diluted earnings (in shares)											456,663