CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
REVENUES:
Net product sales	$ 6,313,190	$ 6,363,152
R&D, milestone and grant revenue	364,963	290,100
TOTAL REVENUES	6,678,153	6,653,252
Cost of product sales	3,984,263	3,320,388
GROSS MARGIN	2,693,890	3,332,864
OPERATING EXPENSES:
Research and development expenses	1,045,259	1,379,131
Selling, general and administrative expenses	1,162,080	1,233,968
TOTAL OPERATING EXPENSES	2,207,339	2,613,099
INCOME FROM OPERATIONS	486,551	719,765
OTHER INCOME (EXPENSES):
Interest income	1,337	1,519
Interest expense	(335)	(2,441)
TOTAL OTHER INCOME (EXPENSES)	1,002	(922)
INCOME BEFORE INCOME TAXES	487,553	718,843
Income tax provision	170,430	285,400
NET INCOME	$ 317,123	$ 433,443
Basic earnings per share (in dollars per share)	$ 0.04	$ 0.05
Diluted earnings per share (in dollars per share)	$ 0.04	$ 0.05
Weighted average number of shares outstanding, basic (in shares)	8,062,984	7,934,331
Weighted average number of shares outstanding, diluted (in shares)	8,699,209	8,512,374