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Employee Benefits - Schedule of Non-Vested Restricted Stock Award Activity (Details) - USD ($)
 6 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Schedule Of Non Vested Restricted Stock Award Activity Abstract    
Non-Vested Shares, Beginning of Period 162,392 162,855
Weighted Average Grant Date Fair Value, Beginning of Period $ 6,190,000 $ 5,369,000
Weighted Average Vesting Term, Beginning of Period 2 years 2 years
Non-Vested Shares, Granted 59,928 63,407
Weighted Average Grant Date Fair Value, Granted $ 2,860,000 $ 2,894,000
Forfeited, Shares
Forfeited, Amount
Non-Vested Shares, Vested 82,210 63,870
Weighted Average Grant Date Fair Value, Vested $ 2,946,000 $ 2,073,000
Non-Vested Shares, End of Period 140,110 162,392
Weighted Average Grant Date Fair Value, End of Period $ 6,104,000 $ 6,190,000
Weighted Average Vesting Term, End of Period 2 years 2 years