Note 4: Loans and Allowance for Loan Losses: Schedule of Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jun. 30, 2017
Financing Receivables, 30 to 59 Days Past Due | Residential Mortgage
Financing Receivable Recorded Investment	$ 1,372	$ 1,491
Financing Receivables, 30 to 59 Days Past Due | Construction Loan Payable
Financing Receivable Recorded Investment	0	35
Financing Receivables, 30 to 59 Days Past Due | Commercial Real Estate
Financing Receivable Recorded Investment	275	700
Financing Receivables, 30 to 59 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	446	216
Financing Receivables, 30 to 59 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	93	144
Financing Receivables, 30 to 59 Days Past Due | Total loans
Financing Receivable Recorded Investment	2,186	2,586
Financing Receivables, 60 to 89 Days Past Due | Residential Mortgage
Financing Receivable Recorded Investment	2,098	148
Financing Receivables, 60 to 89 Days Past Due | Construction Loan Payable
Financing Receivable Recorded Investment	0	0
Financing Receivables, 60 to 89 Days Past Due | Commercial Real Estate
Financing Receivable Recorded Investment	769	0
Financing Receivables, 60 to 89 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	62	16
Financing Receivables, 60 to 89 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	211	53
Financing Receivables, 60 to 89 Days Past Due | Total loans
Financing Receivable Recorded Investment	3,140	217
Financing Receivables, Equal to Greater than 90 Days Past Due | Residential Mortgage
Financing Receivable Recorded Investment	1,261	676
Financing Receivables, Equal to Greater than 90 Days Past Due | Construction Loan Payable
Financing Receivable Recorded Investment	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial Real Estate
Financing Receivable Recorded Investment	446	711
Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	156	134
Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	34	426
Financing Receivables, Equal to Greater than 90 Days Past Due | Total loans
Financing Receivable Recorded Investment	1,897	1,947
Nonperforming Financial Instruments | Residential Mortgage
Financing Receivable Recorded Investment	4,731	2,315
Nonperforming Financial Instruments | Construction Loan Payable
Financing Receivable Recorded Investment	0	35
Nonperforming Financial Instruments | Commercial Real Estate
Financing Receivable Recorded Investment	1,490	1,411
Nonperforming Financial Instruments | Consumer Loan
Financing Receivable Recorded Investment	664	366
Nonperforming Financial Instruments | Commercial Loan
Financing Receivable Recorded Investment	338	623
Nonperforming Financial Instruments | Total loans
Financing Receivable Recorded Investment	7,223	4,750
Financing Receivables Current | Residential Mortgage
Financing Receivable Recorded Investment	453,094	440,148
Financing Receivables Current | Construction Loan Payable
Financing Receivable Recorded Investment	61,018	56,007
Financing Receivables Current | Commercial Real Estate
Financing Receivable Recorded Investment	692,116	602,511
Financing Receivables Current | Consumer Loan
Financing Receivable Recorded Investment	71,277	63,285
Financing Receivables Current | Commercial Loan
Financing Receivable Recorded Investment	254,979	246,561
Financing Receivables Current | Total loans
Financing Receivable Recorded Investment	1,532,484	1,408,512
Performing Financial Instruments | Residential Mortgage
Financing Receivable Recorded Investment	457,825	442,463
Performing Financial Instruments | Construction Loan Payable
Financing Receivable Recorded Investment	61,018	56,042
Performing Financial Instruments | Commercial Real Estate
Financing Receivable Recorded Investment	693,606	603,922
Performing Financial Instruments | Consumer Loan
Financing Receivable Recorded Investment	71,941	63,651
Performing Financial Instruments | Commercial Loan
Financing Receivable Recorded Investment	255,317	247,184
Performing Financial Instruments | Total loans
Financing Receivable Recorded Investment	1,539,707	1,413,262
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Residential Mortgage
Financing Receivable Recorded Investment	0	59
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 | Commercial Real Estate
Financing Receivable Recorded Investment	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Consumer Loan
Financing Receivable Recorded Investment	0	13
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Loan
Financing Receivable Recorded Investment	0	329
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Total loans
Financing Receivable Recorded Investment	$ 0	$ 401