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Investments (Summary of Held-to-Maturity Debt Securities by Contractual Maturity) (Details) | Jun. 30, 2023 USD ($)
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Amortized cost basis |
Due within one year | $ 17,064,274
Amortized cost basis | 17,064,274
Fair Value |
Due within one year | 16,970,534
Fair Value | $ 16,970,534

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