Statements of Operations (Unaudited) (USD $)	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Income Statement [Abstract]
Product sales	$ 5,952,080	$ 4,913,347
Research and development under cooperative agreement	33,971	117,731
Total revenues	5,986,051	5,031,078
Cost of product sales	4,419,360	4,018,754
Cost of research and development under cooperative agreement	28,322	97,887
Gross Margin	1,538,369	914,437
Selling, general, and administrative	1,125,788	899,915
Income from operations	412,581	14,522
Interest expense, net	(962)	(10,192)
Income before taxes	411,619	4,330
Income tax provision	164,000	1,720
Net income	$ 247,619	$ 2,610
Net income per basic common share	$ 0.02	$ 0.00
Weighted average number of basic common shares outstanding	13,069,577	12,871,759
Net income per diluted common share	$ 0.02	$ 0.00
Weighted average number of diluted common shares outstanding	13,696,583	13,112,626