SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 29, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) [Abstract]
Net sales	$ 34,393,056	$ 35,803,405	$ 34,779,773	$ 35,849,126	$ 34,262,039	$ 34,256,086	$ 39,247,980	$ 34,692,174	$ 140,825,360	$ 142,458,279	$ 157,509,185
Gross margin	8,555,221	8,641,473	7,776,304	7,513,406	8,125,689	7,224,409	8,530,842	6,266,580	32,486,404	30,147,520	33,352,478
Selling and administrative expenses	5,670,503	4,892,600	4,988,364	5,216,289	5,089,213	4,767,505	5,223,185	4,681,296	20,767,756	19,761,199	19,801,055
Net (loss)/income	$ 2,033,271	$ 2,431,817	$ 1,693,503	$ 1,502,885	$ 1,923,596	$ 1,798,783	$ 2,174,294	$ 1,005,248	$ 7,661,476	$ 6,901,921	$ 8,625,800
Net (loss)/income per share [Abstract]
Basic (in dollars per share)	$ 0.33	$ 0.39	$ 0.27	$ 0.24	$ 0.31	$ 0.29	$ 0.35	$ 0.16	$ 1.23	$ 1.11	$ 1.39
Diluted (in dollars per share)	$ 0.33	$ 0.39	$ 0.27	$ 0.24	$ 0.31	$ 0.29	$ 0.35	$ 0.16	$ 1.23	$ 1.11	$ 1.38
Weighted average shares outstanding [Abstract]
Basic (in shares)	6,231,729	6,223,140	6,222,676	6,222,213	6,221,851	6,221,515	6,220,569	6,219,775	6,225,068	6,220,928	6,216,931
Diluted (in shares)	6,231,729	6,240,396	6,239,866	6,239,149	6,238,089	6,238,074	6,238,025	6,236,842	6,237,914	6,237,758	6,233,375