CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]
Net sales	$ 40,495,894	$ 33,188,612
Cost of products sold	(32,311,428)	(26,872,271)
Gross margin	8,184,466	6,316,341
Selling and administrative expenses	(5,015,052)	(4,597,285)
Operating profit	3,169,414	1,719,056
Interest expense	(89,237)	(67,003)
Other income	6,136	6,445
Income before income taxes	3,086,313	1,658,498
Income taxes	1,040,705	560,324
Net income	$ 2,045,608	$ 1,098,174
Earnings per Share:
Basic (in dollars per share)	$ 0.33	$ 0.18
Diluted (in dollars per share)	$ 0.33	$ 0.18
Cash dividends per share (in dollars per share)	$ 0.10	$ 0.09