CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 19,688	$ 14,680
Prepaid expenses and other current assets	638	301
Total current assets	20,326	14,981
Property and equipment, net	473	522
Restricted cash	10	10
Intangible assets	46,400	46,400
Goodwill	13,064	13,064
Other assets	19	120
Total assets	80,292	75,097
Current liabilities:
Accounts payable	1,393	907
Accrued expenses	3,853	3,813
Total current liabilities	5,246	4,720
Other liabilities	260	215
Deferred tax liability	12,528	12,528
Contingent consideration	38,400	39,600
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value per share; 5,000,000 shares authorized at March 31, 2018 and December 31, 2017 and no shares issued and outstanding at March 31, 2018 and December 31, 2017	0	0
Common stock, $0.001 par value per share; 200,000,000 shares authorized at March 31, 2018 and December 31, 2017 and 43,105,466 and 34,702,565 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively	43	35
Additional paid-in capital	180,109	170,330
Accumulated deficit	(156,294)	(152,331)
Total stockholders’ equity	23,858	18,034
Total liabilities and stockholders’ equity	$ 80,292	$ 75,097