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Notes Payable - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2025
Schedule Of Notes Payable [Line Items]          
Interest expense, debt $ 69,589 $ 181,474 $ 349,507 $ 565,440  
Accrued interest payable current $ 0 $ 0 $ 0 $ 0  
Forecast | Convertible Notes Payable          
Schedule Of Notes Payable [Line Items]          
Promissory note, monthly principal         $ 0