CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 16,985	$ 22,560
Short-term investments	42,645	45,116
Investment in marketable equity securities		3,952
Accounts receivable	10,476	6,868
Inventories	14,250	12,531
Other current assets	4,078	3,078
Total current assets	88,434	94,105
Non-current assets:
Property and equipment, net	2,342	2,985
Goodwill	1,316	1,316
Intangible assets, net	587	738
Restricted cash	256	184
Other assets	4,151	4,148
Total assets	97,086	103,476
Current liabilities:
Accounts payable	12,501	8,587
Accrued liabilities	10,681	11,218
Debt - current		6,934
Deferred product revenue - current	686	149
Total current liabilities	23,868	26,888
Non-current liabilities:
Debt - non-current	29,780	12,441
Manufacturing and development obligations - non-current	5,623	4,770
Other non-current liabilities	632	1,590
Total liabilities	59,903	45,689
Commitments and contingencies
Stockholders' equity:
Common stock	112	103
Additional paid-in capital	746,916	718,299
Accumulated other comprehensive (loss) income	(28)	103
Accumulated deficit	(709,817)	(660,718)
Total stockholders' equity	37,183	57,787
Total liabilities and stockholders' equity	$ 97,086	$ 103,476