Statements of Operations (USD $)	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Income Statement [Abstract]
Product sales	$ 22,948,993	$ 21,094,801	$ 13,454,250
Research and development under cooperative agreement	188,597	311,198	597,460
Total revenues	23,137,590	21,405,999	14,051,710
Cost of product sales	17,510,556	15,789,840	13,293,905
Cost of research and development under cooperative agreement	156,224	259,082	501,868
Gross Margin	5,470,810	5,357,077	255,937
Selling, general, and administrative	4,254,977	3,897,588	3,055,077
Income (loss) from operations	1,215,833	1,459,489	(2,799,140)
Other income/(expense)	5,083	(30,327)	(28,588)
Income (loss) before income tax	1,220,916	1,429,162	(2,827,728)
Income tax provision (benefit)	218,148	462,707	(1,305,700)
Net income (loss)	$ 1,002,768	$ 966,455	$ (1,522,028)
Net income (loss) per basic common share	$ 0.08	$ 0.07	$ (0.12)
Weighted average number of basic common shares outstanding	13,096,183	12,985,107	12,869,618
Net income (loss) per diluted common share	$ 0.07	$ 0.07	$ (0.12)
Weighted average number of diluted common shares outstanding	13,703,005	13,265,486	12,869,618