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BENEFIT PLANS (Details) - Restricted stock
9 Months Ended
Jan. 31, 2023
shares
Number of Shares  
Non-vested as of April 30, 2022 21,500
Granted during the nine months ended January 31, 2023 14,600
Vested during the nine months ended January 31, 2023 (9,833)
Forfeited during the nine months ended January 31, 2023 0
Non-vested as of January 31, 2023 26,267