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v3.23.2

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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