Summary of Significant Accounting Policies (Details Textual) - USD ($)	1 Months Ended	3 Months Ended		12 Months Ended
	May. 20, 2015	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Summary of Significant Accounting Policies Details [Line Items]
Accounts Payable and Accrued Liabilities		$ 2,100,000	$ 2,900,000
Unrealized Gain (Loss) on Derivatives		$ 0	$ 8,625,000
Percentage Of Net Sales For The Four Products For Royalty		40.00%	40.00%
Sales Revenue, Goods, Net, Total		$ 15,422,000	$ 10,510,000
Sales Revenue Goods Net Percent				10.00%
Assets		188,544,000		$ 184,762,000
Geographic Distribution, Domestic [Member]
Summary of Significant Accounting Policies Details [Line Items]
Sales Revenue, Goods, Net, Total		13,400,000
Assets		136,400,000
Geographic Distribution, Foreign [Member]
Summary of Significant Accounting Policies Details [Line Items]
Sales Revenue, Goods, Net, Total		2,200,000
Assets		52,100,000
Convertible Notes Payable [Member]
Summary of Significant Accounting Policies Details [Line Items]
Notes Payable, Fair Value Disclosure		108,800,000
Long-term Debt, Gross		$ 143,750,000
Unrealized Gain (Loss) on Derivatives				$ 23,100,000
Embedded Derivative, No Longer Bifurcated, Amount Reclassified to Stockholders Equity	$ 18,300,000
Customer Concentration Risk [Member]
Summary of Significant Accounting Policies Details [Line Items]
Concentration Risk, Percentage		64.00%	69.00%
Percentage of Accounts Receivable		57.00%
Percent Of Revenue		10.00%
Royalty [Member]
Summary of Significant Accounting Policies Details [Line Items]
Accounts Payable and Accrued Liabilities		$ 500,000	$ 900,000
Royalty Expense		$ 500,000	900,000
Maximum [Member]
Summary of Significant Accounting Policies Details [Line Items]
Wholesaler Percent of Chargeback Payments		95.00%
Minimum [Member]
Summary of Significant Accounting Policies Details [Line Items]
Wholesaler Percent of Chargeback Payments		90.00%
Net Of SRA Balance [Member]
Summary of Significant Accounting Policies Details [Line Items]
Accounts Receivable, Net		$ 15,600,000	6,100,000
IGI Product [Member]
Summary of Significant Accounting Policies Details [Line Items]
Sales Revenue, Goods, Net, Total		9,200,000	8,100,000
IGI Product [Member] | Royalty [Member]
Summary of Significant Accounting Policies Details [Line Items]
Accounts Payable and Accrued Liabilities		10,000	0
Royalty Expense		$ 10,000	$ 0