SELECTED QUARTERLY FINANCIAL INFORMATION (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. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) [Abstract]
Net sales	$ 34,262,039	$ 34,256,086	$ 39,247,980	$ 34,692,174	$ 35,809,652	$ 39,644,050	$ 41,559,589	$ 40,495,894	$ 142,458,279	$ 157,509,185	$ 142,856,049
Gross margin	8,125,689	7,224,409	8,530,842	6,266,580	7,757,129	8,165,493	9,245,390	8,184,466	30,147,520	33,352,478	27,351,606
Selling and administrative expenses	5,089,213	4,767,505	5,223,185	4,681,296	4,853,876	4,830,971	5,101,156	5,015,052	19,761,199	19,801,055	18,639,426
Net (loss)/income	$ 1,923,596	$ 1,798,783	$ 2,174,294	$ 1,005,248	$ 1,723,871	$ 2,223,975	$ 2,632,346	$ 2,045,608	$ 6,901,921	$ 8,625,800	$ 5,504,930
Net (loss)/income per share [Abstract]
Basic (in dollars per share)	$ 0.31	$ 0.29	$ 0.35	$ 0.16	$ 0.28	$ 0.36	$ 0.42	$ 0.33	$ 1.11	$ 1.39	$ 0.89
Diluted (in dollars per share)	$ 0.31	$ 0.29	$ 0.35	$ 0.16	$ 0.28	$ 0.36	$ 0.42	$ 0.33	$ 1.11	$ 1.38	$ 0.89
Weighted average shares outstanding [Abstract]
Basic (in shares)	6,221,851	6,221,515	6,220,569	6,219,775	6,219,384	6,219,241	6,217,198	6,213,913	6,220,928	6,216,931	6,178,664
Diluted (in shares)	6,238,089	6,238,074	6,238,025	6,236,842	6,237,709	6,234,727	6,231,335	6,231,739	6,237,758	6,233,375	6,216,193