CONDENSED CONSOLIDATED BALANCE SHEET - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 26,590	$ 20,202
Marketable securities	107,681	173,655
Accounts receivable, net	1,033	481
Inventory	1,044
Prepaid expenses and other current assets	9,171	5,883
Total current assets	145,519	200,221
Marketable securities		14,997
Property and equipment, net	4,409	2,159
Intangible assets	7,292	7,349
Goodwill	18,504	18,504
Other assets	452	279
Total assets	176,176	243,509
Current liabilities:
Accounts payable	13,735	7,822
Accrued expenses	8,545	4,940
Total current liabilities	22,280	12,762
Contingent consideration	5,244	4,378
Other liabilities	1,775	558
Deferred tax liability	549	549
Total liabilities	29,848	18,247
Stockholders' Equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized and no shares issued or outstanding at September 30, 2018 and December 31, 2017
Common stock, $0.00001 par value; 100,000,000 shares authorized at September 30, 2018 and December 31, 2017; 30,991,060 and 30,856,505 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively
Additional paid-in capital	400,066	384,943
Accumulated other comprehensive loss	(116)	(246)
Accumulated deficit	(253,622)	(159,435)
Total stockholders’ equity	146,328	225,262
Total liabilities and stockholders’ equity	$ 176,176	$ 243,509