Loans and Allowance for Loan Losses - Past due loans (Details) - USD ($)	Dec. 31, 2021	Jun. 30, 2021
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	$ 1,233,518	$ 1,328,837
30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	250,352	535,696
60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	226,894	0
90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	756,272	793,141
1-4 Family Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	1,034,934	1,123,172
1-4 Family Owner Occupied | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	250,352	535,696
1-4 Family Owner Occupied | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	226,894	0
1-4 Family Owner Occupied | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	557,688	587,476
1-4 Family Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
1-4 Family Non-Owner Occupied | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
1-4 Family Non-Owner Occupied | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
1-4 Family Non-Owner Occupied | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Multifamily
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Multifamily | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Multifamily | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Multifamily | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Commercial Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	180,579	182,532
Commercial Owner Occupied | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Commercial Owner Occupied | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Commercial Owner Occupied | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	180,579	182,532
Commercial Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Commercial Non-Owner Occupied | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Commercial Non-Owner Occupied | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Commercial Non-Owner Occupied | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Construction, Land, Development
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Construction, Land, Development | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Construction, Land, Development | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Construction, Land, Development | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	0	0
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	18,005	23,133
Consumer | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans		0
Consumer | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans		0
Consumer | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	$ 18,005	$ 23,133