Debt Securities - Continuous unrealized loss position (Details) - USD ($)	Dec. 31, 2025	Jun. 30, 2025
Debt Securities, Available-for-sale, Unrealized losses
Less than 12 Months		$ (97)
12 Months or More	$ (541,332)	(652,995)
Total Gross Unrealized Losses	(541,332)	(653,092)
Debt Securities, Available-for-sale, Fair value
Less than 12 Months		30,835
12 Months or More	3,612,010	3,693,456
Total Fair Value	3,612,010	3,724,291
States and municipalities
Debt Securities, Available-for-sale, Unrealized losses
12 Months or More	(432)	(772)
Total Gross Unrealized Losses	(432)	(772)
Debt Securities, Available-for-sale, Fair value
12 Months or More	114,568	114,228
Total Fair Value	114,568	114,228
Mortgage-backed
Debt Securities, Available-for-sale, Unrealized losses
Less than 12 Months		(97)
12 Months or More	(27,326)	(39,524)
Total Gross Unrealized Losses	(27,326)	(39,621)
Debt Securities, Available-for-sale, Fair value
Less than 12 Months		30,835
12 Months or More	511,016	691,927
Total Fair Value	511,016	722,762
Corporate bonds
Debt Securities, Available-for-sale, Unrealized losses
12 Months or More	(513,574)	(612,699)
Total Gross Unrealized Losses	(513,574)	(612,699)
Debt Securities, Available-for-sale, Fair value
12 Months or More	2,986,426	2,887,301
Total Fair Value	$ 2,986,426	$ 2,887,301

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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), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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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), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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