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NOTES PAYABLE - Company's Notes Payable (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Oct. 31, 2023
Oct. 31, 2022
Oct. 31, 2023
Oct. 31, 2022
Apr. 30, 2023
NOTES PAYABLE          
Principal Amount Available for New Borrowings $ 4,177   $ 4,177    
Outstanding Principal Amount 39   39   $ 44
Principal Repayments 2 $ 2 5 $ 2  
Revolving Line of Credit          
NOTES PAYABLE          
Principal Amount Available for New Borrowings $ 4,177   $ 4,177    
Interest Rate 8.47%   8.47%    
Mortgaged Property Book Value $ 1,721   $ 1,721    
Equipment Financing          
NOTES PAYABLE          
Outstanding Principal Amount $ 39   $ 39   $ 44
Interest Rate 2.35%   2.35%    
Mortgaged Property Book Value $ 39   $ 39    
Principal Repayments $ 2 $ 2 $ 5 $ 2