CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended
	Apr. 02, 2016	Apr. 04, 2015
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]
Net sales	$ 33,101,657	$ 36,876,842
Cost of products sold	(26,681,211)	(29,541,664)
Gross margin	6,420,446	7,335,178
Selling and administrative expenses	(5,459,582)	(5,963,695)
Operating profit	960,864	1,371,483
Interest expense	(36,285)	(52,825)
Other income	21,374	7,007
Income before income taxes	945,953	1,325,665
Income taxes	297,880	451,714
Net income	$ 648,073	$ 873,951
Earnings per Share:
Basic (in dollars per share)	$ 0.10	$ 0.14
Diluted (in dollars per share)	0.10	0.14
Cash dividends per share: (in dollars per share)	$ 0.11	$ 0.11