CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 50,863	$ 31,605
Short-term investments	13,004	15,527
Prepaid expenses and other current assets	793	328
Total current assets	64,660	47,460
Property and equipment, net	846	298
Restricted cash	355	130
Deferred issuance costs	2,650	56
Total assets	68,511	47,944
Current liabilities:
Accounts payable	1,399	901
Accrued expenses	5,328	2,335
Total current liabilities	6,727	3,236
Deferred lease incentive	238
Total liabilities	6,965	3,236
Commitments (Note 7)
Convertible preferred stock	111,565	77,927
Stockholders’ (deficit) equity:
Additional paid in-capital	1,831	1,428
Accumulated other comprehensive income	13	5
Accumulated deficit	(51,863)	(34,652)
Total stockholders’ (deficit) equity	(50,019)	(33,219)
Total liabilities, convertible preferred stock and stockholders’ (deficit) equity	68,511	47,944
Series A Convertible Preferred Stock
Current liabilities:
Convertible preferred stock	44,657	44,657
Series A-2 Convertible Preferred Stock
Current liabilities:
Convertible preferred stock	$ 66,908	$ 33,270