Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 142,274	$ 42,189
Short-term marketable securities	23,047
Prepaid expenses and other current assets	1,400	748
Total current assets	166,721	42,937
Property and equipment, net	1,566	1,511
Deferred financing costs	2,461
Other assets	101	100
Total assets	170,849	44,548
Current liabilities:
Accounts payable	3,574	1,863
Royalty payable	16,000
Accrued expenses	3,100	1,749
Current portion of deferred revenue	49,362
Other current liabilities	168	161
Total current liabilities	72,204	3,773
Deferred revenue - net of current portion	6,400
Long-term liabilities	222	349
Total liabilities	78,826	4,122
Convertible preferred stock	147,902
Non-controlling interest	3,773	3,773
Stockholders’ equity (deficit):
Common stock, $0.001 par value; 100,000,000 and 165,000,000 shares authorized at September 30, 2019 and December 31, 2018, respectively; 2,382,309 and 2,084,710 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively	2	2
Additional paid-in capital	3,585	804
Accumulated other comprehensive income	116
Accumulated deficit	(63,355)	(49,088)
Total stockholders’ deficit	(59,652)	(48,282)
Total liabilities, convertible preferred stock, non-controlling interest and stockholders’ deficit	170,849	44,548
Series C Convertible Preferred Stock
Current liabilities:
Convertible preferred stock	62,701
Series B Convertible Preferred Stock
Current liabilities:
Convertible preferred stock	38,490	38,224
Series B-1 Convertible Preferred Stock
Current liabilities:
Convertible preferred stock	9	9
Series A Convertible Preferred Stock
Current liabilities:
Convertible preferred stock	46,694	46,694
Series A-1 Convertible Preferred Stock
Current liabilities:
Convertible preferred stock	$ 8	$ 8