Note 4: Loans and Allowance for Loan Losses: Schedule of Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Financing Receivables, 30 to 59 Days Past Due | Residential Mortgage
Financing Receivable Recorded Investment	$ 3,334	$ 1,491
Financing Receivables, 30 to 59 Days Past Due | Construction Loan Payable
Financing Receivable Recorded Investment	507	35
Financing Receivables, 30 to 59 Days Past Due | Commercial Real Estate
Financing Receivable Recorded Investment	659	700
Financing Receivables, 30 to 59 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	466	216
Financing Receivables, 30 to 59 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	389	144
Financing Receivables, 30 to 59 Days Past Due | Total loans
Financing Receivable Recorded Investment	5,355	2,586
Financing Receivables, 60 to 89 Days Past Due | Residential Mortgage
Financing Receivable Recorded Investment	1,074	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	437	0
Financing Receivables, 60 to 89 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	232	16
Financing Receivables, 60 to 89 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	147	53
Financing Receivables, 60 to 89 Days Past Due | Total loans
Financing Receivable Recorded Investment	1,890	217
Financing Receivables, Equal to Greater than 90 Days Past Due | Residential Mortgage
Financing Receivable Recorded Investment	1,026	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	4,147	711
Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer Loan
Financing Receivable Recorded Investment	241	134
Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial Loan
Financing Receivable Recorded Investment	665	426
Financing Receivables, Equal to Greater than 90 Days Past Due | Total loans
Financing Receivable Recorded Investment	6,079	1,947
Nonperforming Financial Instruments | Residential Mortgage
Financing Receivable Recorded Investment	5,434	2,315
Nonperforming Financial Instruments | Construction Loan Payable
Financing Receivable Recorded Investment	507	35
Nonperforming Financial Instruments | Commercial Real Estate
Financing Receivable Recorded Investment	5,243	1,411
Nonperforming Financial Instruments | Consumer Loan
Financing Receivable Recorded Investment	939	366
Nonperforming Financial Instruments | Commercial Loan
Financing Receivable Recorded Investment	1,201	623
Nonperforming Financial Instruments | Total loans
Financing Receivable Recorded Investment	13,324	4,750
Financing Receivables Current | Residential Mortgage
Financing Receivable Recorded Investment	441,967	440,148
Financing Receivables Current | Construction Loan Payable
Financing Receivable Recorded Investment	53,045	56,007
Financing Receivables Current | Commercial Real Estate
Financing Receivable Recorded Investment	650,753	602,511
Financing Receivables Current | Consumer Loan
Financing Receivable Recorded Investment	65,786	63,285
Financing Receivables Current | Commercial Loan
Financing Receivable Recorded Investment	244,964	246,561
Financing Receivables Current | Total loans
Financing Receivable Recorded Investment	1,456,515	1,408,512
Performing Financial Instruments | Residential Mortgage
Financing Receivable Recorded Investment	447,401	442,463
Performing Financial Instruments | Construction Loan Payable
Financing Receivable Recorded Investment	53,552	56,042
Performing Financial Instruments | Commercial Real Estate
Financing Receivable Recorded Investment	655,996	603,922
Performing Financial Instruments | Consumer Loan
Financing Receivable Recorded Investment	66,725	63,651
Performing Financial Instruments | Commercial Loan
Financing Receivable Recorded Investment	246,165	247,184
Performing Financial Instruments | Total loans
Financing Receivable Recorded Investment	1,469,839	1,413,262
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Residential Mortgage
Financing Receivable Recorded Investment	761	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	4,147	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Consumer Loan
Financing Receivable Recorded Investment	136	13
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Loan
Financing Receivable Recorded Investment	637	329
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Total loans
Financing Receivable Recorded Investment	$ 5,681	$ 401