CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 39,884	$ 13,678
Accounts receivable	9	1,066
Prepaid expenses and other current assets	412	292
Total current assets	40,305	15,036
Property and equipment, net	178	203
Investment	2,618	2,745
Other long-term assets	322	321
Total assets	43,423	18,305
Current liabilities:
Accounts payable	3,558	1,858
Accounts payable - related parties	25	88
Accrued expenses	367	1,832
Accrued income taxes	241	3
Warrant liability	3,313	0
Other liabilities, current	35	33
Total current liabilities	7,539	3,814
Other liabilities, non-current	102	119
Total liabilities	7,641	3,933
Commitments and contingencies (Note 2)
Stockholders' equity
Preferred stock - $0.0001 par value; 10,000,000 shares authorized; 153,000 shares designated Series A-1 Redeemable Preferred Stock at June 30, 2017	0	0
Common stock - $0.0001 par value; 80,000,000 shares authorized; 26,890,677 and 23,102,728 shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively	3	2
Additional paid-in capital	21,906	18,140
Accumulated deficit	(4,136)	(17,256)
Total stockholders' equity	17,773	886
Total liabilities and stockholders' equity	43,423	18,305
Series A Preferred stock - $0.0001 par value, no shares and 83,502 shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively (Liquidation preference of $13,777 at December 31, 2016)
Redeemable Preferred Stock
Redeemable Preferred Stock	0	13,486
Series A-1 Preferred stock - $0.0001 par value, 153,000 shares and no shares issued and outstanding at June 30, 2017 and December 31, 2016, respectively (Liquidation preference of $18,934 at June 30, 2017)
Redeemable Preferred Stock
Redeemable Preferred Stock	$ 18,009	$ 0