Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017 USD ($) product	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Summary of Significant Accounting Policies Details [Line Items]
Product sales, net	$ 19,853	$ 15,422
Accounts payable and accrued expenses	4,000	2,100
Wholesale fees	$ 2,200	600
Percentage of net sales for royalty	40.00%
Assets	$ 190,300		$ 183,226	[1]
Reclassification of non-cash transactions related to capital expenditures		1,000
Domestic
Summary of Significant Accounting Policies Details [Line Items]
Product sales, net	16,900
Assets	125,500
Foreign
Summary of Significant Accounting Policies Details [Line Items]
Product sales, net	3,000
Assets	64,800
Contract manufacturing sales
Summary of Significant Accounting Policies Details [Line Items]
Product sales, net	3,417	6,231
Product sales, gross	3,400	6,200
Royalty
Summary of Significant Accounting Policies Details [Line Items]
Accounts payable and accrued expenses	500	500
Royalty expense	$ 500	500
United States
Summary of Significant Accounting Policies Details [Line Items]
Products which the company pays royalties | product	4
Products manufactured, marketed and distributed | product	22
IGI Product
Summary of Significant Accounting Policies Details [Line Items]
Product sales, net	$ 16,400	9,200
Net Of SRA Balance
Summary of Significant Accounting Policies Details [Line Items]
Accounts receivable, net of SRA balances	$ 27,900	$ 15,600
Maximum
Summary of Significant Accounting Policies Details [Line Items]
Wholesaler percent of chargeback payments	95.00%
Minimum
Summary of Significant Accounting Policies Details [Line Items]
Wholesaler percent of chargeback payments	90.00%
Convertible Notes Payable
Summary of Significant Accounting Policies Details [Line Items]
Net carrying value of notes	$ 113,700
Face value of notes	$ 143,750
Customer concentration risk | Sales Revenue | Three Customers
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk	58.00%
Customer concentration risk | Sales Revenue | Customer One
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk	27.00%
Customer concentration risk | Sales Revenue | Customer Two
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk	18.00%
Customer concentration risk | Sales Revenue | Customer Three
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk	13.00%
Customer concentration risk | Sales Revenue | Four Customers
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		64.00%
Customer concentration risk | Sales Revenue | Customer Four
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		23.00%
Customer concentration risk | Sales Revenue | Customer Five
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		19.00%
Customer concentration risk | Sales Revenue | Customer Six
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		12.00%
Customer concentration risk | Sales Revenue | Customer Seven
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		10.00%
Customer concentration risk | Accounts Receivable | Three Customers
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk	94.00%
Customer concentration risk | Accounts Receivable | Four Customers
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		57.00%
Pro forma
Summary of Significant Accounting Policies Details [Line Items]
Reclassification of non-cash transactions related to capital expenditures			$ 1,800

[1] Derived from the audited December 31, 2016 financial statements