CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 22,327	$ 13,683
Short-term investments	96,669	47,013
Accounts receivable	10,476	12,415
Inventories	13,322	14,457
Other current assets	7,360	2,330
Total current assets	150,154	89,898
Non-current assets:
Property and equipment, net	3,124	2,119
Goodwill	1,316	1,316
Intangible assets, net	385	536
Restricted cash	2,729	247
Other assets	3,949	4,128
Total assets	161,657	98,244
Current liabilities:
Accounts payable	14,333	10,974
Accrued liabilities	16,764	11,712
Debt – current	5,714
Manufacturing and development obligations – current	5,858
Deferred product revenue – current	533	445
Total current liabilities	43,202	23,131
Non-current liabilities:
Debt – non-current	24,138	29,798
Manufacturing and development obligations – non-current		5,766
Other non-current liabilities	2,516	609
Total liabilities	69,856	59,304
Commitments and contingencies
Stockholders' equity:
Common stock	136	115
Additional paid-in capital	854,653	760,225
Accumulated other comprehensive loss	(326)	(97)
Accumulated deficit	(762,662)	(721,303)
Total stockholders' equity	91,801	38,940
Total liabilities and stockholders' equity	$ 161,657	$ 98,244