Consolidated Statements of Operations (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues	$ 24,023	$ 20,279	$ 65,666	$ 56,798
Costs and expenses:
Cost of sales	13,050	11,496	35,069	32,063
Selling, general and administrative	7,701	7,808	23,618	23,306
Gain on revaluation of ACT liability		(768)	(758)	(768)
Research and development	358	264	1,075	575
Operating Expenses	21,109	18,800	59,004	55,176
Operating income	2,914	1,479	6,662	1,622
Interest expense	(47)	(33)	(125)	(110)
Interest income	14	4	19	6
Other (expense) income	(57)	89	(252)	(169)
Income before income taxes	2,824	1,539	6,304	1,349
Income tax expense	(169)	(722)	(1,880)	(627)
Net income	$ 2,655	$ 817	$ 4,424	$ 722
Net income per common share:
Basic (in Dollars per share)	$ 0.11	$ 0.03	$ 0.18	$ 0.03
Diluted (in Dollars per share)	$ 0.11	$ 0.03	$ 0.18	$ 0.03
Weighted-average number of common shares outstanding:
Basic (in Shares)	24,322,000	24,213,000	24,269,000	24,213,000
Diluted (in Shares)	24,850,000	24,381,000	24,881,000	24,401,000