Investments (Summary of Unrealized Positions for Held-to-Maturity Debt Securities) (Details) - USD ($)	Dec. 31, 2023	Jun. 30, 2023
Schedule of Held-to-Maturity Securities [Line Items]
Amortized cost basis	$ 17,072,657	$ 17,064,274
Gross unrealized losses	(12,757)	(93,740)
Fair Value	17,059,900	16,970,534
US Treasury Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
Amortized cost basis	17,072,657	17,064,274
Gross unrealized losses	(12,757)	(93,740)
Fair Value	$ 17,059,900	$ 16,970,534