Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 165,725	$ 2,056
Short-term investments	60,547
Prepaid expenses and other current assets	5,994	97
Current portion of unsecured related party note receivable		7
Total current assets	232,266	2,160
Property and equipment, net	1,003
Operating lease right-of-use asset	959
Long-term investments	33,656
Other long-term assets	55
Unsecured related party note receivable		29
Total assets	267,939	2,189
Current liabilities:
Accounts payable	3,872	421
Accrued liabilities	2,125	852
Current operating lease liability	57
Grant liability	1,500
Total current liabilities	7,554	1,273
Operating lease liability, less current portion	915
Grant liability		1,036
Derivative liability		999
Convertible notes, net		1,553
Total liabilities	8,469	4,861
Commitments and contingencies (Note 8)
Convertible preferred stock, $0.0001 par value; 0 and 2,797,464 shares authorized at September 30, 2020 and December 31, 2019, respectively; 0 and 2,617,386 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively		17,051
Stockholders' equity (deficit):
Common stock, $0.0001 par value; 900,000,000 and 10,088,017 shares authorized at September 30, 2020 and December 31, 2019, respectively; 31,087,395 and 3,641,449 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	3
Additional paid-in capital	292,800	1,364
Accumulated other comprehensive income	7
Accumulated deficit	(33,340)	(21,087)
Total stockholders' equity (deficit)	259,470	(19,723)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	$ 267,939	$ 2,189