Investments (Summary of Unrealized Positions for Held-to-Maturity Debt Securities) (Details) - USD ($)	Jun. 30, 2023	Jun. 30, 2022
Schedule of Held-to-Maturity Securities [Line Items]
Amortized cost basis	$ 17,064,274
Gross unrealized losses	93,740
Fair Value	16,970,534
Short-term investments	17,064,274
Investments		$ 0
US Treasury Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Amortized cost basis	17,064,274
Gross unrealized losses	93,740
Fair Value	$ 16,970,534

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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