Other Comprehensive Income (Details) - USD ($)	3 Months Ended										9 Months Ended
	Mar. 31, 2022	Dec. 31, 2021		Sep. 30, 2021		Mar. 31, 2021	Dec. 31, 2020		Sep. 30, 2020		Mar. 31, 2022
Other Comprehensive Income
Balance, at beginning	$ 30,527,955	$ 30,282,157		$ 29,849,151		$ 21,620,687	$ 21,196,469		$ 20,782,335		$ 29,849,151
Balance, at ending	30,503,088	30,527,955		30,282,157		21,817,961	21,620,687		21,196,469		30,503,088
Net gain on securities transactions											14,000
Provision for income taxes	3,815
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income
Balance, at beginning	68,392	121,600		120,667		148,996	115,506		66,725		120,667
Other comprehensive income (loss) before reclassifications (net of tax)	(287,934)	(47,240)		(4,186)		(48,329)	(16,008)		9,685
Amortization of amounts transferred from debt securities available for sale to held to maturity	4,628	4,217	[1]	5,119	[1]	26,492	49,498	[1]	39,096	[1]
Amounts reclassified from accumulated other comprehensive income (net of tax)		(10,185)
Balance, at ending	(214,914)	68,392		121,600		127,159	148,996		115,506		(214,914)
Unrealized Gains and Losses on Available for Sale Debt Securities
Other Comprehensive Income
Balance, at beginning	126,947	184,372		188,558		256,365	272,373		262,688		188,558
Other comprehensive income (loss) before reclassifications (net of tax)	(287,934)	(47,240)		(4,186)		(48,329)	(16,008)		9,685
Amounts reclassified from accumulated other comprehensive income (net of tax)		(10,185)
Balance, at ending	(160,987)	126,947		184,372		208,036	256,365		272,373		(160,987)
Unrealized Losses on Held to Maturity Debt Securities
Other Comprehensive Income
Balance, at beginning	(58,555)	(62,772)		(67,891)		(107,369)	(156,867)		(195,963)		(67,891)
Amortization of amounts transferred from debt securities available for sale to held to maturity	4,628	4,217	[1]	5,119	[1]	26,492	49,498	[1]	39,096	[1]
Balance, at ending	$ (53,927)	$ (58,555)		$ (62,772)		$ (80,877)	$ (107,369)		$ (156,867)		$ (53,927)

[1] (a) The reclassification adjustment is included in the Consolidated Statement of Income as Net Gain on Securities Transactions.