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Stock-Based Compensation Plans - Summary of CRSU Plan Activity (Details) - shares
 6 Months Ended 12 Months Ended
Jul. 31, 2024
Jan. 31, 2024
Stock-Based Compensation Plans    
Number of Units Outstanding, CRSU (in shares),Beginning 11,370  
Weighted-Average Remaining Contractual Life, CRSU (years) 2 years 1 month 6 days 1 year 9 months 18 days
Number of Units Granted, CRSU (in shares) 8,579  
Number of Units Vested and settled in cash, CRSU (in shares) (3,430)  
Number of Units Forfeited, CRSU (in shares) (7)  
Number of Units Outstanding, CRSU (in shares), Ending 16,512 11,370
Non-vested, CRSU (in shares) 16,512  
Non-vested, Weighted-Average Remaining Contractual Life, CRSU (years) 2 years 1 month 6 days