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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 32,969 $ 41,562
Grant receivables 1,638 3,672
Prepaid expenses and other current assets 1,433 2,413
Total current assets 36,040 47,647
Property and equipment, net 281 233
Right-of-use assets, operating leases 696 813
Other assets 1,755 1,732
Total assets 38,772 50,425
Current liabilities:    
Accounts payable 2,859 3,216
Accrued expenses 4,288 2,094
Deferred grant income, current 910 1,702
Operating lease liabilities, current 170 149
Other current liabilities 2 634
Total current liabilities 8,229 7,795
Operating lease liabilities, noncurrent 565 695
Deferred grant income and other liabilities, noncurrent 1,052 1,686
Total liabilities 9,846 10,176
Commitments and contingencies (Note 6)
Stockholders' equity:    
Preferred stock, $0.001 par value, 10,000,000 shares authorized; no shares issued and outstanding at September 30, 2023 and December 31, 2022
Common stock, $0.001 par value, 250,000,000 shares authorized; 30,417,082 and 28,991,548 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively 30 29
Additional paid-in capital 162,140 155,820
Accumulated deficit (133,048) (115,401)
Accumulated other comprehensive loss (196) (199)
Total stockholders' equity 28,926 40,249
Total liabilities and stockholders' equity $ 38,772 $ 50,425