v3.26.1
Commitments and Contingencies (Details Narrative) - JPY (¥)
12 Months Ended
Feb. 03, 2026
Dec. 17, 2025
Sep. 26, 2025
Dec. 13, 2024
May 14, 2023
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Loss Contingencies [Line Items]                  
Commitments under purchase or guarantee arrangements           ¥ 0 ¥ 0    
Legal matters           0 0    
Research and development costs           ¥ 86,158,000 ¥ 103,440,000  
Loss contingency, damages paid, value   ¥ 20,394,000              
Litigation loss           924,000      
Interest expense           8,399,000      
Loss contingency accrual           5,284,000      
Litigation settlement expense ¥ 1,131,000   ¥ 1,197,000            
Minimum [Member]                  
Loss Contingencies [Line Items]                  
Percentage of accruing interest rate   3.00%              
Maximum [Member]                  
Loss Contingencies [Line Items]                  
Percentage of accruing interest rate   14.60%              
ZESTO Consulting LLC [Member]                  
Loss Contingencies [Line Items]                  
Unpaid system development fees         ¥ 21,770,000        
Research and development costs                 ¥ 22,470,000
Unpaid service fees       ¥ 19,470,000          
Percentage of accruing interest rate       3.00%          
Payment of earmarked funds           ¥ 19,470,000