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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 29,922 $ 41,562
Grant receivables 1,281 3,672
Prepaid expenses and other current assets 3,019 2,413
Total current assets 34,222 47,647
Property and equipment, net 284 233
Right-of-use assets, operating leases 657 813
Other assets   1,732
Total assets 35,163 50,425
Current liabilities:    
Accounts payable 3,695 3,216
Accrued expenses 4,055 2,094
Deferred grant income, current 1,701 1,702
Operating lease liabilities, current 174 149
Other current liabilities 544 634
Total current liabilities 10,169 7,795
Operating lease liabilities, noncurrent 520 695
Deferred grant income and other liabilities, noncurrent 0 1,686
Total liabilities 10,689 10,176
Commitments and contingencies (Note 7)
Stockholders' equity:    
Preferred stock, $0.001 par value, 10,000,000 shares authorized; no shares issued and outstanding at December 31, 2023 and December 31, 2022
Common stock, $0.001 par value, 250,000,000 shares authorized; 32,165,478 and 28,991,548 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively 32 29
Additional paid-in capital 165,826 155,820
Accumulated deficit (141,189) (115,401)
Accumulated other comprehensive loss (195) (199)
Total stockholders' equity 24,474 40,249
Total liabilities and stockholders' equity $ 35,163 $ 50,425