Other Comprehensive Income (Loss) (Details) - USD ($)	3 Months Ended				6 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Other Comprehensive Income (Loss)
Balance, at beginning	$ 31,170,144	$ 30,742,567	$ 30,282,157	$ 29,849,151	$ 30,742,567	$ 29,849,151
Balance, at ending	31,219,600	31,170,144	30,527,955	30,282,157	31,219,600	30,527,955
Net gain on securities transactions	24,000		14,000		24,000	14,000
Provision for income taxes	6,538		3,815
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss)
Balance, at beginning	(496,839)	(369,029)	121,600	120,667	(369,029)	120,667
Other comprehensive income (loss) before reclassifications (net of tax)	(199,467)	(129,271)	(47,240)	(4,186)
Amortization of amounts transferred from debt securities available for sale to held to maturity	1,345	1,461	(10,185)	5,119
Amounts reclassified from accumulated other comprehensive income (net of tax)	(17,462)		4,217
Balance, at ending	(712,423)	(496,839)	68,392	121,600	(712,423)	68,392
Unrealized Gains and Losses on Available for Sale Debt Securities
Other Comprehensive Income (Loss)
Balance, at beginning	(447,615)	(318,344)	184,372	188,558	(318,344)	188,558
Other comprehensive income (loss) before reclassifications (net of tax)	(199,467)	(129,271)	(47,240)	(4,186)
Amortization of amounts transferred from debt securities available for sale to held to maturity			(10,185)
Amounts reclassified from accumulated other comprehensive income (net of tax)	(17,462)
Balance, at ending	(664,544)	(447,615)	126,947	184,372	(664,544)	126,947
Unrealized Losses on Held to Maturity Debt Securities
Other Comprehensive Income (Loss)
Balance, at beginning	(49,224)	(50,685)	(62,772)	(67,891)	(50,685)	(67,891)
Amortization of amounts transferred from debt securities available for sale to held to maturity	1,345	1,461		5,119
Amounts reclassified from accumulated other comprehensive income (net of tax)			4,217
Balance, at ending	$ (47,879)	$ (49,224)	$ (58,555)	$ (62,772)	$ (47,879)	$ (58,555)