CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
REVENUES:
Net product sales	$ 24,327,355	$ 17,422,311
License and royalty revenue	0	140,322
R&D, milestone and grant revenue	1,283,240	1,825,403
TOTAL REVENUES	25,610,595	19,388,036
Cost of product sales	14,820,604	9,997,733
GROSS MARGIN	10,789,991	9,390,303
OPERATING EXPENSES:
Research and development expenses	4,486,302	4,878,119
Selling, general and administrative expenses	4,851,587	3,424,297
TOTAL OPERATING EXPENSES	9,337,889	8,302,416
INCOME FROM OPERATIONS	1,452,102	1,087,887
OTHER INCOME (EXPENSES):
Interest income	7,911	6,298
Interest expense	(9,495)	(18,623)
TOTAL OTHER INCOME (EXPENSES)	(1,584)	(12,325)
INCOME BEFORE INCOME TAXES	1,450,518	1,075,562
Income tax provision (benefit)	509,237	(5,133,229)
NET INCOME	$ 941,281	$ 6,208,791
Basic earnings per share (in dollars per share)	$ 0.12	$ 0.79
Diluted earnings (loss) per share (in dollars per share)	$ 0.11	$ 0.73
Weighted average number of shares outstanding, basic (in shares)	7,986,030	7,874,807
Weighted average number of shares outstanding, diluted (in shares)	8,614,944	8,556,284