Investments (Summary of Unrealized Positions for Held-to-Maturity Debt Securities) (Details) - USD ($)	Mar. 31, 2024	Jun. 30, 2023
Schedule of Held-to-Maturity Securities [Line Items]
Amortized cost basis	$ 17,032,899	$ 17,064,274
Gross unrealized losses	(49,886)	(93,740)
Fair Value	16,983,013	16,970,534
US Treasury Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Amortized cost basis	17,032,899	17,064,274
Gross unrealized losses	(49,886)	(93,740)
Fair Value	$ 16,983,013	$ 16,970,534