Consolidated Statements of Income - USD ($)	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Consolidated Statements of Income [Abstract]
Net sales	$ 144,567,951	$ 140,825,360	$ 142,458,279
Cost of products sold	(112,186,725)	(108,338,956)	(112,310,759)
Gross margin	32,381,226	32,486,404	30,147,520
Selling and administrative expenses	(24,353,498)	(20,767,756)	(19,761,199)
Operating profit	8,027,728	11,718,648	10,386,321
Interest expense	(185,475)	(254,576)	(322,731)
Other income	178,722	64,691	50,305
Income before income taxes	8,020,975	11,528,763	10,113,895
Income taxes	2,293,932	3,867,287	3,211,974
Net income	$ 5,727,043	$ 7,661,476	$ 6,901,921
Earnings per Share:
Basic (in dollars per share)	$ 0.92	$ 1.23	$ 1.11
Diluted (in dollars per share)	$ 0.92	$ 1.23	$ 1.11