Loans and Allowance for Loan Losses - Past due loans (Details) - USD ($)	6 Months Ended
	Dec. 31, 2019	Jun. 30, 2019
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	$ 4,084,581	$ 4,305,475
TDR's granted during the period	0
TDR's defaulted during the period	0
TDR's outstanding	$ 0	0
Loans transferred out of TDR	0
30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	2,058,296	2,305,204
60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	913,442	475,403
90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	1,112,843	1,524,868
Construction, Land, Development
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	35,697	0
Construction, Land, Development | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	35,697	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
1-4 Family Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	3,609,008	3,782,455
1-4 Family Owner Occupied | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	1,887,777	2,129,016
1-4 Family Owner Occupied | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	908,130	450,183
1-4 Family Owner Occupied | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	813,101	1,203,256
1-4 Family Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	58,833	103,706
1-4 Family Non-Owner Occupied | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	58,833	103,706
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	191,014	193,601
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	191,014	193,601
Commercial Non-Owner Occupied
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	25,871	0
Commercial Non-Owner Occupied | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	25,871	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
Consumer and Installment Loan
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	164,158	225,713
Consumer and Installment Loan | 30-59 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	50,118	72,482
Consumer and Installment Loan | 60-89 days, accruing
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	5,312	25,220
Consumer and Installment Loan | 90 days & over or nonaccrual
Loans and Leases Receivable Disclosure [Line Items]
Past due loans	$ 108,728	$ 128,011