Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Total Revenues	$ 14,156	$ 11,253	$ 37,611	$ 49,473
Cost of sales	3,779	4,445	11,760	14,261
Expenses:
Research and development	699	1,986	4,038	6,246
Selling, general and administrative	13,489	14,867	41,013	44,094
Total Expenses:	14,188	16,853	45,051	50,340
Loss from operations	(3,811)	(10,045)	(19,200)	(15,128)
Interest expense	(2,567)	(1,893)	(7,598)	(6,657)
Other expense, net	(2)	(13)	(8)	(28)
Bargain purchase gain				27,336
(Loss) income before income taxes	(6,380)	(11,951)	(26,806)	5,523
Income tax (expense) benefit			(53)	15,972
Net (loss) income	(6,380)	(11,951)	(26,859)	21,495
Beneficial conversion feature of convertible preferred stock	(12,500)		(12,500)
Net (loss) income attributable to common stockholders	$ (18,880)	$ (11,951)	$ (39,359)	$ 21,495
Basic
Basic (loss) income per share:	$ (0.29)	$ (0.21)	$ (0.65)	$ 0.39
Weighted average common stock shares outstanding:	64,900,007	55,604,708	60,599,456	55,170,569
Diluted
Diluted (loss) income per share:	$ (0.29)	$ (0.21)	$ (0.65)	$ 0.38
Diluted weighted average common stock shares outstanding:	64,900,007	55,604,708	60,599,456	56,204,358
Product Sales [Member]
Revenues:
Total Revenues	$ 13,763	$ 8,118	$ 34,367	$ 23,798
Product Royalty Revenues [Member]
Revenues:
Total Revenues	370	1,409	2,197	3,682
Research And Development Reimbursements [Member]
Revenues:
Total Revenues		532		799
Contract Revenues [Member]
Revenues:
Total Revenues	$ 23	$ 1,194	$ 1,047	$ 21,194