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INVESTMENT IN MORION, INC. (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2022
Oct. 31, 2021
Apr. 30, 2022
INVESTMENT IN MORION, INC. (Details) [Line Items]          
Related Party Transaction, Purchases from Related Party $ 31,000 $ 34,000 $ 31,000 $ 120,000  
Proceeds from Dividends Received       $ 123,000  
Other than Temporary Impairment Losses, Investments         $ 796,000
Morion Inc [Member]          
INVESTMENT IN MORION, INC. (Details) [Line Items]          
Cost Method Investment Ownership Percentage 4.60%   4.60%