Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reduction to gross product sales:
Net IGI product sales	$ 8,647	$ 6,021	$ 19,157	$ 12,520
Gross Net Adjustments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross IGI product sales	27,861	5,770	50,180	10,795
Reduction to gross product sales:
Chargebacks and billbacks	15,576	1,884	28,088	3,468
Sales discounts and other allowances	5,612	504	7,322	1,001
Total reduction to gross product sales	21,188	2,388	35,410	4,469
Net IGI product sales	$ 6,673	$ 3,382	$ 14,770	$ 6,326