UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Total revenues	$ 14,229	$ 19,826	$ 48,220	$ 82,349
Operating expenses:
Cost of products	2,823	3,120	9,711	13,224
Research and development expenses	7,539	11,402	25,160	33,243
Selling, general and administrative expenses	5,316	24,829	22,520	77,159
Intangible asset amortization	205	1,620	610	4,996
Changes in fair value of related party contingent consideration	627	(7,115)	2,384	(17,036)
Restructuring costs	1,866	65	4,600	268
Total operating expenses	18,376	33,921	64,985	111,854
Operating loss	(4,147)	(14,095)	(16,765)	(29,505)
Investment and other income, net	781	208	2,548	845
Interest expense	(3,125)	(3,000)	(9,293)	(7,577)
Loss on deconsolidation of subsidiary	0	0	(2,840)	0
Other (expense) income - changes in fair value of related party payable	(139)	425	(496)	1,432
Loss before income taxes	(6,630)	(16,462)	(26,846)	(34,805)
Income tax provision (benefit)	2,234	(691)	3,641	(3,360)
Net loss	$ (8,864)	$ (15,771)	$ (30,487)	$ (31,445)
Net income (loss) per share - basic (in dollars per share)	$ (0.24)	$ (0.43)	$ (0.82)	$ (0.84)
Net income (loss) per share - diluted (in dollars per share)	$ (0.24)	$ (0.43)	$ (0.82)	$ (0.84)
Weighted average number of shares outstanding - basic (in shares)	37,436	36,904	37,382	37,410
Weighted average number of shares outstanding - diluted (in shares)	37,436	36,904	37,382	37,410
Product sales
Revenues:
Total revenues	$ 14,229	$ 19,826	$ 48,220	$ 82,103
License revenue
Revenues:
Total revenues	$ 0	$ 0	$ 0	$ 246