Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 36,359	$ 72,058
Short-term investments	68,524	23,169
Restricted cash	730	730
Prepaid expenses and other current assets	2,824	3,682
Total current assets	108,437	99,639
Restricted cash - long-term	3,020	2,930
Property and equipment, net	18,936	2,968
Goodwill	3,631	3,631
Intangible assets	8,000	8,000
Other assets	33	301
Total assets	142,057	117,469
Current liabilities:
Accounts payable	2,424	2,789
Accrued liabilities	9,871	4,797
Deferred rent	265	137
Total current liabilities	12,560	7,723
Deferred rent and asset retirement obligation - long-term	2,486	519
Contingent acquisition consideration payable	4,380	4,278
Deferred tax liability, net	3,260	3,260
Total liabilities	22,686	15,780
Stockholders' equity:
Preferred stock
Additional paid-in capital	219,811	6,692
Accumulated deficit	(100,411)	(40,743)
Accumulated other comprehensive loss	(29)	(10)
Total stockholders' equity	119,371	101,689
Total liabilities and stockholders' equity	$ 142,057	117,469
Convertible Preferred Stock, Series Seed
Stockholders' equity:
Preferred stock		1,378
Total stockholders' equity		1,378
Convertible Preferred Stock, Series A
Stockholders' equity:
Preferred stock		28,757
Total stockholders' equity		28,757
Convertible Preferred Stock, Series B
Stockholders' equity:
Preferred stock		42,835
Total stockholders' equity		42,835
Convertible Preferred Stock, Series C
Stockholders' equity:
Preferred stock		62,780
Total stockholders' equity		$ 62,780