Condensed Consolidated Balance Sheet - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 113,327	$ 44,429
Accounts receivable (less reserve for doubtful accounts of $98 and $36 as of September 30, 2019 and December 31, 2018, respectively; including $321 and $48 from related parties as of September 30, 2019 and December 31, 2018, respectively)	11,914	6,792
Inventory	11,161	5,945
Prepaid expenses and other current assets	2,297	2,330
Total current assets	138,699	59,496
Restricted cash	1,026	1,000
Property and equipment, net	12,064	2,923
Intangible assets, net	14,221	2,348
Goodwill	8,961	1,308
Other non-current assets	574	536
Total assets	175,545	67,611
Current liabilities:
Accounts payable (including $0 and $36 to related parties as of September 30, 2019 and December 31, 2018, respectively)	4,245	5,110
Accrued compensation and benefits	5,251	4,449
Other accrued expenses (including $258 and $226 to related parties as of September 30, 2019 and December 31, 2018, respectively)	3,539	3,129
Deferred revenue (including $62 and $33 with related parties as of September 30, 2019 and December 31, 2018, respectively)	4,909	5,437
Current portion of long term debt	75
Other current liabilities	204
Total current liabilities	18,223	18,125
Deferred revenue, net of current portion	357	520
Long term debt, net of current portion	7,565	7,623
Other non-current liabilities	13,165	278
Total liabilities	39,310	26,546
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock, $0.001 par value: Authorized—120,000,000 shares as of September 30, 2019 and December 31, 2018; issued and outstanding — 27,967,713 and 22,369,036 shares as of September 30, 2019 and December 31, 2018, respectively	28	22
Additional paid-in capital	342,628	216,931
Accumulated other comprehensive loss	(1,135)
Accumulated deficit	(205,286)	(175,888)
Total stockholders’ equity	136,235	41,065
Total liabilities and stockholders’ equity	$ 175,545	$ 67,611