Segment Information and Concentration of Customers and Suppliers (Details) (USD $)	3 Months Ended						12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2013 item	Dec. 31, 2012
Segment Information and Concentration of Customers and Suppliers
Number of operating segments							1
Revenue
Net product revenue							$ 25,244,000	$ 2,012,000
License revenue							55,838,000
Total revenue	44,057,000	27,379,000	5,534,000	4,112,000	1,971,000	41,000	81,082,000	2,012,000
Qsymia
Revenue
Net product revenue							23,718,000	2,012,000
STENDRA or SPEDRA
Revenue
Net product revenue							$ 1,526,000