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NOTES PAYABLE (Details) - USD ($)
$ in Thousands
Jan. 31, 2022
Apr. 30, 2021
NOTES PAYABLE:    
Notes Payable $ 5,726 $ 3,448
Real estate notes payable [Member]    
NOTES PAYABLE:    
Notes Payable 5,739 3,482
Unamortized debt issuance costs [Member]    
NOTES PAYABLE:    
Notes Payable $ (13) $ (34)