v3.26.1
Subsequent Events- Additional Information (Detail)
$ / shares in Units, ¥ in Millions
Apr. 17, 2026
$ / shares
shares
Apr. 01, 2026
JPY (¥)
Apr. 01, 2026
USD ($)
Mar. 19, 2026
JPY (¥)
Mar. 19, 2026
USD ($)
Jun. 30, 2026
shares
Dec. 31, 2025
shares
Dec. 31, 2024
shares
Subsequent Event [Line Items]                
Software license fee   ¥ 15.0 $ 9,500 ¥ 1.5 $ 10      
Amount fixed consideration of software agreement   ¥ 18.0 $ 114,000 ¥ 18.0 $ 114      
Common stock, shares, issued           5,544,050 5,752,800 5,745,000
Share price | $ / shares $ 0.0001              
Stock issued during period, shares, new issues 21.88              
Founder Share [Member]                
Subsequent Event [Line Items]                
Common stock, shares, issued 218,750