Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 6,768	$ 14,430
Accounts receivable	2,525	0
Contract asset - current	8,124	0
Prepaid expenses and other current assets	1,259	105
Total current assets	18,676	14,535
Property and equipment, net of accumulated depreciation of $2,562 and $2,311, respectively	1,416	1,222
Right of use asset - operating lease	4,403
Contract asset - long term	3,330
Other assets	1	1
Total assets	27,826	15,758
Current liabilities:
Accounts payable	1,640	452
Related party payable	72	100
Accrued expenses	1,756	1,470
Lease liability, current - operating lease	198
Deferred rent, current		150
Total current liabilities	3,666	2,172
Convertible promissory notes, net of debt discount of $18,003 and $18,003, respectively (see Note 6)	0	0
Accrued interest payable	2,334	1,738
Warrant liability	3	152
Derivative liability	6,079	1,474
Lease liability, operating lease	5,003
Deferred rent		665
Total liabilities	17,085	6,201
Stockholders’ equity:
Series A nonredeemable convertible preferred stock; 8,000 shares designated, 8,000 shares issued and outstanding as of September 30, 2019 and December 31, 2018 respectively; aggregate liquidation preference of $8,860 at September 30, 2019 and $8,600 at December 31, 2018.	0	0
Common stock, $0.001 par value; 150,000,000 shares authorized, 9,758,332 shares issued and outstanding at September 30, 2019 and December 31, 2018.	10	10
Additional paid-in capital	198,938	198,627
Accumulated deficit	(188,207)	(189,080)
Total stockholders’ equity	10,741	9,557
Total liabilities and stockholders’ equity	$ 27,826	$ 15,758