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LEASE COMMITMENTS (Details) - USD ($)
 12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2023
Other Commitments [Line Items]            
Operating lease, right-of-use assets $ 118,000 $ 84,000        
Operating Lease, Liability, Statement of Financial Position [Extensible List] Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities        
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets Other assets        
Operating Lease Liability $ 117,000 $ 86,000        
Operating Leases, Rent Expense $ 30,000 $ 114,000        
Weighted average remaining lease term of operating lease 4 years 4 months 2 days 1 year        
Weighted average discount rate of operating lease 5.50% 5.50%        
Minimum [Member]            
Other Commitments [Line Items]            
Non-cancelable operating lease term (in years) 2 years          
Maximum [Member]            
Other Commitments [Line Items]            
Non-cancelable operating lease term (in years) 5 years          
Subsequent Event [Member]            
Other Commitments [Line Items]            
Remaining operating lease payments     $ 38,000 $ 27,000 $ 26,000 $ 25,000
Present value of lease liabilities           $ 101,000