v3.26.1
Stock-Based Compensation - Summary of Transactions Related to Grant of Restricted Stock Units to Employees (Detail) - $ / shares
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Restricted Stock Units [Member]    
Amount    
Unvested, Beginning Balance 4,316 10,767
Granted 0 90,909
Vested (2,249) (95,931)
Forfeited 0  
Cancelled   (1,429)
Unvested, Ending Balance 2,067 4,316
Weighted average grant date fair value price    
Unvested, Beginning Balance $ 0.0011 $ 0.0011
Granted 0 1.65
Vested 0.0011 1.43
Forfeited 0  
Cancelled   0.0011
Unvested, Ending Balance $ 0.0011 $ 0.0011
Restricted Stock Awards [Member]    
Amount    
Unvested, Beginning Balance 15,683 20,906
Granted 0 0
Vested (2,616) (5,223)
Repurchased 0 0
Unvested, Ending Balance 13,067 15,683
Weighted average grant date fair value price    
Unvested, Beginning Balance $ 0.0011 $ 0.0011
Granted 0 0
Vested 0.0011 0.0011
Repurchased 0 0
Unvested, Ending Balance $ 0.0011 $ 0.0011