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OTHER ASSETS - Additional Information (Details) - USD ($)
3 Months Ended
Jul. 31, 2025
Jul. 31, 2024
OTHER ASSETS    
Depreciation expense $ 78,000 $ 48,000
Use rights    
OTHER ASSETS    
Amortization of lease cost 7,000 7,000
Depreciation expense $ 39,000 $ 24,000