v3.26.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Cash flows from operating activities:    
Net loss $ (23,487) $ (33,971)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 36 107
Equity-based compensation 2,087 3,748
Amortization of right-of-use assets 192 159
Loss on currency translation from liquidation of subsidiary   195
Realized loss on sale of property and equipment 41  
Changes in operating assets and liabilities:    
Grant receivables (7,237) (1,405)
Prepaid expenses and other assets 1,173 1,633
Accounts payable and accrued expenses 3,510 1,854
Deferred grant income and other liabilities (699) (635)
Operating lease liabilities (204) (159)
Net cash used in operating activities (24,588) (28,474)
Cash flows from investing activities:    
Payments for property and equipment   (4)
Proceeds from sale of property and equipment 9  
Net cash used in investing activities 9 (4)
Cash flows from financing activities:    
Proceeds from the exercise of common stock options 71 82
Payment of employee withholding taxes on vested restricted stock units (164) (128)
Payments on loan payable (353) (739)
Net cash provided by financing activities 36,570 23,565
Net increase (decrease) in cash, cash equivalents, and restricted cash equivalents 11,991 (4,913)
Cash, cash equivalents, and restricted cash equivalents    
Cash, cash equivalents, and restricted cash equivalents - beginning of period 25,009 29,922
Cash, cash equivalents, and restricted cash equivalents - end of period 37,000 25,009
Supplemental disclosures of non-cash financing activities:    
Prepayment of insurance through third-party financing 381 475
Registered Direct Offerings    
Cash flows from financing activities:    
Proceeds from issuance of common stock 27,890 11,896
At The Market Offering    
Cash flows from financing activities:    
Proceeds from issuance of common stock $ 9,126 $ 12,454