Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash	$ 8,849	$ 16,387
Prepaid expenses	1,228	197
Total current assets	10,077	16,584
Right-of-use assets and other		105
Property and equipment, net	5	110
Total assets	10,082	16,799
Current liabilities:
Accounts payable	664	830
Accrued liabilities	585	1,301
Lease liability, short-term		26
Total current liabilities	1,249	2,157
Lease liability, long-term		45
Total liabilities	1,249	2,202
Commitments and contingencies (Notes 4, 5, and 10)
Stockholders' equity
Preferred stock, $0.001 par value per share; 10,000,000 shares authorized as of June 30, 2022 and December 31, 2021; no shares issued or outstanding as of June 30, 2022 and December 31, 2021.
Common stock, $0.001 par value per share, 100,000,000 shares authorized as of June 30, 2022 and December 31, 2021; 26,661,771 shares issued and outstanding as of June 30, 2022 and December 31, 2021.	27	27
Additional paid-in capital	96,812	96,394
Accumulated other comprehensive income		4
Accumulated deficit	(88,006)	(81,828)
Total stockholders' equity	8,833	14,597
Total liabilities and stockholders' equity	$ 10,082	$ 16,799