Statements of Operations (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Income Statement [Abstract]
Product sales	$ 17,643,151	$ 19,913,420	$ 11,300,765
Research and development under cooperative agreement	2,164,001	1,483,898	1,679,391
Total revenues	19,807,152	21,397,318	12,980,156
Cost of product sales	14,878,123	16,053,051	9,191,388
Cost of research and development under cooperative agreement	1,973,114	1,328,315	1,541,355
Gross Margin	2,955,915	4,015,952	2,247,413
Selling, general, and administrative	3,291,745	2,962,366	2,098,315
Operating income (loss)	(335,830)	1,053,586	149,098
Other expense, net	(32,671)	(32,424)	(38,906)
Income (loss) before income tax	(368,501)	1,021,162	110,192
Income tax provision (benefit)	(322,766)	310,973	(452,223)
Net income (loss)	$ (45,735)	$ 710,189	$ 562,415
Net income (loss) per basic common share	$ 0.00	$ 0.06	$ 0.04
Weighted average number of basic common shares outstanding	12,765,774	12,642,517	12,624,959
Net income ( loss) per diluted common share	$ 0.00	$ 0.06	$ 0.04
Weighted average number of diluted common shares outstanding	12,765,774	12,881,542	12,930,575