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Intangible Assets (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Jan. 31, 2023
Jan. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization expense $ 40,000 $ 6,000 $ 119,000 $ 18,000