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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Current assets:    
Cash and cash equivalents $ 86,643 $ 88,932
Prepaid expenses 416 743
Other current assets 530 218
Total current assets 87,589 89,893
Other assets 4 6
Total assets 87,593 89,899
Current liabilities:    
Accounts payable and accrued expenses 6,992 6,557
Total current liabilities 7,017 6,641
Contract liabilities 1,830 18,669
Total liabilities 8,961 25,462
Commitments and contingencies
Stockholders’ equity:    
Additional paid-in capital 394,205 391,090
Accumulated deficit (315,612) (326,692)
Total stockholders’ equity 78,632 64,437
Total liabilities and stockholders’ equity 87,593 89,899
Related Party    
Current liabilities:    
Warrant liability, related party 25 84
Nonrelated Party    
Current liabilities:    
Warrant liability 114 152
Class A Common Stock    
Stockholders’ equity:    
Common stock value 39 39
Class B Common Stock    
Stockholders’ equity:    
Common stock value $ 0 $ 0