v3.26.3
Stockholders' Equity - Schedule of Options (Detail) - $ / shares
 9 Months Ended 12 Months Ended
Aug. 27, 2026
Sep. 30, 2026
Dec. 31, 2025
Number      
Options exercised in period (in shares) (150,000) (150,000)  
Forfeited (in shares)   (290,000)  
Weighted Average Exercise Price      
Exercised (in usd per share) $ 0.35    
Weighted-Average Remaining Contractual Term (in Years)      
Weighted average remaining contractual term (in years)   4 years 1 month 2 days  
Weighted average remaining contractual term, granted (in years)   0 years  
Weighted average remaining contractual term, exercised (in years)   0 years  
Weighted Average Fair Value      
Weighted average fair value, granted (in usd per share)   $ 0.52  
Weighted average fair value, exercised (in usd per share)   0.13  
Weighted average fair value, forfeited (in usd per share)   $ 1.42  
Options      
Number      
Beginning balance (in shares)   13,352,500  
Granted (in shares)   773,630  
Ending balance (in shares)   13,686,130 13,352,500
Vested and exercisable (in shares)   9,858,313  
Weighted Average Exercise Price      
Beginning balance (in usd per share)   $ 1.81  
Granted (in usd per share)   0.73  
Exercised (in usd per share)   0.35  
Forfeited (in usd per share)   1.49  
Ending balance (in usd per share)   1.77 $ 1.81
Weighted average exercise price, vested and expected to vest (in usd per share)   1.89  
Weighted-Average Remaining Contractual Term (in Years)      
Weighted average remaining contractual term (in years)     4 years 8 months 1 day
Weighted average remaining contractual term, vested and exercisable (in years)   3.70  
Weighted Average Fair Value      
Beginning weighted average fair value (in usd per share)   2.64  
Ending weighted average fair value (in usd per share)   2.60 $ 2.64
Weighted average fair value, vested and exercisable (in usd per share)   $ 2.17