CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]
Net sales	$ 41,559,589	$ 35,520,182	$ 82,055,483	$ 68,708,794
Cost of products sold	(32,314,199)	(28,588,070)	(64,625,627)	(55,460,341)
Gross margin	9,245,390	6,932,112	17,429,856	13,248,453
Selling and administrative expenses	(5,101,156)	(4,633,196)	(10,116,208)	(9,230,481)
Operating profit	4,144,234	2,298,916	7,313,648	4,017,972
Interest expense	(98,667)	(53,040)	(187,904)	(120,043)
Other income	4,587	3,071	10,723	9,516
Income before income taxes	4,050,154	2,248,947	7,136,467	3,907,445
Income taxes	1,417,808	766,148	2,458,513	1,326,472
Net income	$ 2,632,346	$ 1,482,799	$ 4,677,954	$ 2,580,973
Earnings per Share:
Basic (in dollars per share)	$ 0.42	$ 0.24	$ 0.75	$ 0.42
Diluted (in dollars per share)	$ 0.42	$ 0.24	$ 0.75	$ 0.42
Cash dividends per share (in dollars per share)	$ 0.10	$ 0.09	$ 0.20	$ 0.18