Note 4: Loans and Allowance for Loan Losses: Schedule of Loan Portfolio Aging Analysis (Details) - USD ($)	Mar. 31, 2019	Jun. 30, 2018
Financial Asset, 30 to 59 Days Past Due | Total loans
Financing Receivable Recorded Investment	$ 4,633	$ 2,493
Financial Asset, 30 to 59 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	311	510
Financial Asset, 30 to 59 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	1,329	134
Financial Asset, 30 to 59 Days Past Due | Construction Loan Payable
Financing Receivable Recorded Investment	247	0
Financial Asset, 30 to 59 Days Past Due | Residential Real Estate
Financing Receivable Recorded Investment	2,216	749
Financial Asset, 30 to 59 Days Past Due | Commercial Real Estate
Financing Receivable Recorded Investment	530	1,100
Financial Asset, 60 to 89 Days Past Due | Total loans
Financing Receivable Recorded Investment	2,308	497
Financial Asset, 60 to 89 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	13	33
Financial Asset, 60 to 89 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	88	90
Financial Asset, 60 to 89 Days Past Due | Construction Loan Payable
Financing Receivable Recorded Investment	0	0
Financial Asset, 60 to 89 Days Past Due | Residential Real Estate
Financing Receivable Recorded Investment	779	84
Financial Asset, 60 to 89 Days Past Due | Commercial Real Estate
Financing Receivable Recorded Investment	1,428	290
Financial Asset, Equal to or Greater than 90 Days Past Due | Total loans
Financing Receivable Recorded Investment	12,795	6,426
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	205	146
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	2,205	707
Financial Asset, Equal to or Greater than 90 Days Past Due | Construction Loan Payable
Financing Receivable Recorded Investment	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential Real Estate
Financing Receivable Recorded Investment	3,524	4,089
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate
Financing Receivable Recorded Investment	6,861	1,484
Nonperforming Financial Instruments | Total loans
Financing Receivable Recorded Investment	19,736	9,416
Nonperforming Financial Instruments | Consumer Loan
Financing Receivable Recorded Investment	529	689
Nonperforming Financial Instruments | Commercial Loan
Financing Receivable Recorded Investment	3,622	931
Nonperforming Financial Instruments | Construction Loan Payable
Financing Receivable Recorded Investment	247	0
Nonperforming Financial Instruments | Residential Real Estate
Financing Receivable Recorded Investment	6,519	4,922
Nonperforming Financial Instruments | Commercial Real Estate
Financing Receivable Recorded Investment	8,819	2,874
Financing Receivables Current | Total loans
Financing Receivable Recorded Investment	1,823,150	1,572,178
Financing Receivables Current | Consumer Loan
Financing Receivable Recorded Investment	90,354	77,882
Financing Receivables Current | Commercial Loan
Financing Receivable Recorded Investment	339,282	280,341
Financing Receivables Current | Construction Loan Payable
Financing Receivable Recorded Investment	73,086	66,185
Financing Receivables Current | Residential Real Estate
Financing Receivable Recorded Investment	487,099	445,997
Financing Receivables Current | Commercial Real Estate
Financing Receivable Recorded Investment	833,329	701,773
Performing Financial Instruments | Total loans
Financing Receivable Recorded Investment	1,842,886	1,581,594
Performing Financial Instruments | Consumer Loan
Financing Receivable Recorded Investment	90,883	78,571
Performing Financial Instruments | Commercial Loan
Financing Receivable Recorded Investment	342,904	281,272
Performing Financial Instruments | Construction Loan Payable
Financing Receivable Recorded Investment	73,333	66,185
Performing Financial Instruments | Residential Real Estate
Financing Receivable Recorded Investment	493,618	450,919
Performing Financial Instruments | Commercial Real Estate
Financing Receivable Recorded Investment	842,148	704,647
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Total loans
Financing Receivable Recorded Investment	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Consumer Loan
Financing Receivable Recorded Investment	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Loan
Financing Receivable Recorded Investment	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Construction Loan Payable
Financing Receivable Recorded Investment	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Residential Real Estate
Financing Receivable Recorded Investment	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Real Estate
Financing Receivable Recorded Investment	$ 0	$ 0