Loans - Summary of aging of the past due loans (Details) - USD ($)	Dec. 31, 2022	Jun. 30, 2022
Financing Receivable, Past Due [Line Items]
Nonaccrual Balance	$ 55,303	$ 63,785
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	53,919	70,485
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	69,951
90 Days Or Greater
Financing Receivable, Past Due [Line Items]
Total Past Due		50,818
Residential [Member] | One-to-four-family residential
Financing Receivable, Past Due [Line Items]
Nonaccrual Balance	55,303	63,785
Residential [Member] | One-to-four-family residential | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	53,919	70,485
Residential [Member] | One-to-four-family residential | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 69,951
Residential [Member] | One-to-four-family residential | 90 Days Or Greater
Financing Receivable, Past Due [Line Items]
Total Past Due		$ 50,818