2. Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Components of company's net revenue
Gross product sales	$ 32,229,805	$ 20,369,936	$ 106,237,421	$ 57,523,259
Sales allowances	(15,079,509)	(5,509,712)	(50,245,967)	(19,312,944)
Net product sales	17,150,296	14,860,224	55,991,454	38,210,315
Manufacturing revenue	486,781	2,093,701	2,222,159	2,093,701
Co-promotion and royalty revenue	658,053	1,180,233	2,732,791	2,811,501
Net revenues	$ 18,295,130	$ 18,134,158	$ 60,946,404	$ 43,115,517