QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (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 item	Dec. 29, 2012 item	Dec. 31, 2011 item
QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)
Net sales	$ 55,847,000	$ 47,221,000	$ 60,122,000	$ 53,510,000	$ 60,793,000	$ 45,789,000	$ 61,633,000	$ 55,995,000	$ 216,700,000	$ 224,210,000	$ 223,880,000
Gross profit	20,316,000	15,812,000	20,875,000	16,396,000	20,670,000	14,661,000	26,383,000	22,197,000	73,399,000	83,911,000	96,419,000
Income (loss) before income tax provision (benefit)	(4,761,000)	(7,989,000)	(3,138,000)	(8,278,000)	(4,970,000)	(8,089,000)	1,701,000	(2,005,000)	(24,166,000)	(13,363,000)	2,265,000
Income tax provision (benefit)	13,000	8,000	20,000	10,227,000	555,000	(1,713,000)	670,000	(797,000)	10,268,000	(1,285,000)	184,000
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
Basic and diluted earnings (loss) per share:
Basic earnings (loss) per share (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
Diluted earnings (loss) per share (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
Impairment charge									1,000,000	1,100,000	719,000
Number of underperforming stores									27	26	14
Non-cash tax charge and reversal of deferred tax asset valuation allowance				10,200,000	2,500,000	1,300,000
Severance accruals	$ 106,000	$ 638,000	$ 956,000	$ 1,500,000	$ 61,000	$ 227,000	$ 152,000		$ 3,198,000	$ 564,000	$ 118,000