CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)	3 Months Ended	9 Months Ended
Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 01, 2010
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]
Net sales	$ 36,089,946	$ 33,958,681	$ 104,798,740	$ 97,490,901
Cost of products sold	(29,533,528)	(27,040,159)	(84,993,869)	(77,615,059)
Gross margin	6,556,418	6,918,522	19,804,871	19,875,842
Selling and administrative expenses	(4,429,312)	(4,680,232)	(13,659,793)	(13,736,128)
Operating profit	2,127,106	2,238,290	6,145,078	6,139,714
Interest expense	(53,643)	(64,971)	(173,686)	(203,040)
Other income	8,012	20	17,528	511
Income before income taxes	2,081,475	2,173,339	5,988,920	5,937,185
Income taxes	621,534	683,591	1,948,006	2,026,908
Net income	$ 1,459,941	$ 1,489,748	$ 4,040,914	$ 3,910,277
Earnings per Share:
Basic (in dollars per share)	$ 0.24	$ 0.24	$ 0.66	$ 0.64
Diluted (in dollars per share)	$ 0.24	$ 0.24	$ 0.65	$ 0.63
Cash dividends per share (in dollars per share)	$ 0.09	$ 0.09	$ 0.27	$ 0.27

Aggregate dividends declared during the period for each share of common stock outstanding.

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