Summary of Significant Accounting Policies (Details Textual)		12 Months Ended
	May 20, 2015 USD ($)	Dec. 31, 2016 USD ($) derivative application product segment	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 13, 2015 agreement
Summary of Significant Accounting Policies Details [Line Items]
Operating segments | segment		1
Number of ANDAs on file | application		34
Number of asset purchase agreements | agreement					2
Unrecognized tax benefits		$ 0
Unrecognized tax benefits that would impact the effective tax rate		0
Reclassification of derivative liability to equity	$ 18,300,000	0	$ 18,256,000	$ 0
Change in the fair value of derivative liability		0	23,144,000	2,300,000
Inventory reserve for obsolescence		300,000	100,000
Goodwill		446,000	426,000	0
Impairments		0
Accounts payable and accrued liabilities		3,500,000	2,500,000
Wholesaler fees		$ 3,700,000	6,300,000	3,100,000
Percentage of net sales for royalty		40.00%
Royalties		$ 843,000	744,000
Royalty expense		$ 3,000,000	3,600,000	$ 3,600,000
Number of derivatives | derivative		0
Convertible Notes Payable
Summary of Significant Accounting Policies Details [Line Items]
Reclassification of derivative liability to equity	18,300,000
Net carrying value		$ 111,400,000
Face value of debt		$ 143,750,000
Change in the fair value of derivative liability			23,100,000
Convertible debt
Summary of Significant Accounting Policies Details [Line Items]
Reclassification of derivative liability to equity	$ 18,256,000
Change in the fair value of derivative liability			$ 23,100,000
Licensing Agreements
Summary of Significant Accounting Policies Details [Line Items]
Intangible assets useful life		10 years
Net sales revenue
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		43.00%	52.00%	44.00%
Accounts receivable
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		81.00%	83.00%	42.00%
Customer one | Sales
Summary of Significant Accounting Policies Details [Line Items]
Sales revenue		$ 13,500,000	$ 12,300,000	$ 10,500,000
Customer two | Sales
Summary of Significant Accounting Policies Details [Line Items]
Sales revenue		8,600,000	5,800,000	$ 4,400,000
Customer three | Sales
Summary of Significant Accounting Policies Details [Line Items]
Sales revenue		$ 6,800,000	5,000,000
Maximum
Summary of Significant Accounting Policies Details [Line Items]
Intangible assets useful life		15 years
Wholesaler percent of chargeback payments		95.00%
Minimum
Summary of Significant Accounting Policies Details [Line Items]
Intangible assets useful life		10 years
Wholesaler percent of chargeback payments		90.00%
Net Of SRA Balance
Summary of Significant Accounting Policies Details [Line Items]
Accounts receivable net		$ 41,500,000	$ 14,200,000
US
Summary of Significant Accounting Policies Details [Line Items]
Generic products marketed | product		16
Branded generic products marketed | product		4
Products which the company pays royalties | product		4
Products manufactured, marketed, and distributed | product		16
Canada
Summary of Significant Accounting Policies Details [Line Items]
Generic and branded generic products marketed | product		30
Contract Services
Summary of Significant Accounting Policies Details [Line Items]
Terms of customer credit		30 days
Wholesalers, Distributors, National Retail Chains
Summary of Significant Accounting Policies Details [Line Items]
Terms of customer credit		60 days
Econazole Nitrate Cream | Product Concentration Risk | Net sales revenue
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		8.00%	45.00%	38.00%
Lidocaine Ointment | Product Concentration Risk | Net sales revenue
Summary of Significant Accounting Policies Details [Line Items]
Concentration risk		23.00%