Off-Balance-Sheet Activities (Details) - USD ($)	Jun. 30, 2023	Jun. 30, 2022
Other Commitments [Line Items]
Percentage outstanding with fixed interest rate	100.00%	81.00%
Percentage outstanding with variable interest rate	0.00%	19.00%
Commitments to grant loans
Other Commitments [Line Items]
Other commitments	$ 407,904	$ 4,025,000
Unused commitments under lines of credit
Other Commitments [Line Items]
Other commitments	4,718,652	6,707,000
MPF credit enhancements
Other Commitments [Line Items]
Other commitments	$ 625,701	$ 838,277