Note 3 – Marketable Securities (Details Narrative) |
Apr. 30, 2023
USD ($)
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Investments, Debt and Equity Securities [Abstract] | |
[custom:CorporateBondsAtCarryingValueFairValue-0] | $ 12,814,038 |
[custom:CorporateBondsAtCarryingValueCostBasis-0] | 13,678,203 |
[custom:CorporateBondsAtCarryingValueUnrealizedLosses-0] | 864,165 |
[custom:CorporateBondsAtCarryingValueContractualMaturities1-0] | 2,138,088 |
[custom:CorporateBondsAtCarryingValueContractualMaturities2-0] | 10,523,950 |
[custom:CorporateBondsAtCarryingValueContractualMaturities3-0] | $ 152,000 |
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