Investment Securities (Schedule of Available-for-Sale Securities) (Details) - USD ($)	Mar. 31, 2022	Jun. 30, 2021
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 3,211,225
Gross Unrealized Gains
Gross Unrealized Losses	(1,928)
Fair Value	3,209,297	$ 3,092,000
Certificates of Deposit [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	3,139,000	3,092,000
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	3,139,000	$ 3,092,000
Municipal Bonds [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	72,225
Gross Unrealized Gains
Gross Unrealized Losses	(1,928)
Fair Value	$ 70,297

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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