Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 78,900,000	$ 90,765,000
Prepaid and other	2,080,000	2,088,000
Total current assets	80,980,000	92,853,000
Right-of-use asset	157,000	75,000
Other assets	389,000	657,000
Total assets	81,526,000	93,585,000
Current liabilities:
Accounts payable	2,519,000	1,959,000
Accrued liabilities	4,638,000	3,431,000
Deferred grant revenue	211,000	0
Lease liability	144,000	75,000
Total current liabilities	7,512,000	5,465,000
Lease liability, net of current	13,000	0
Commitments and contingencies (Note 3)
Stockholders’ equity:
Preferred stock, $0.001 par value, authorized shares - 5,000 at June 30, 2022 and December 31, 2021; issued and outstanding shares - none	0	0
Common stock, $0.001 par value; authorized shares - 120,000; issued and outstanding shares - 52,150 and 49,429 at June 30, 2022 and December 31, 2021, respectively	52,000	49,000
Additional paid-in capital	209,724,000	202,201,000
Accumulated deficit	(135,775,000)	(114,130,000)
Total stockholders’ equity	74,001,000	88,120,000
Total liabilities and stockholders’ equity	$ 81,526,000	$ 93,585,000