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Statements of Comprehensive Loss - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Statement of Comprehensive Income [Abstract]    
Net loss $ (45,851) $ (45,431)
Other comprehensive loss:    
Unrealized gain on securities available-for-sale 16 101
Total comprehensive loss (45,835) (45,330)
Preferred stock dividend payable on Series A Convertible Preferred Stock (25) (24)
Comprehensive loss attributable to common stockholders $ (45,860) $ (45,354)