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OTHER ASSETS - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Jan. 31, 2025
Jan. 31, 2024
OTHER ASSETS        
Depreciation     $ 130,000 $ 107,000
Property and equipment        
OTHER ASSETS        
Depreciation $ 19,000 $ 19,000 66,000 47,000
Right of use assets        
OTHER ASSETS        
Amortization of leased cost $ 7,000 $ 7,000 $ 21,000 $ 19,000