Note 6: Loans and Allowance For Loan Losses: Troubled Debt Restructured Loans Returned to Accrual Status (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Troubled Debt Restructurings Returned to Accrual Status	$ 111	$ 404	$ 345	$ 424
One-to-Four-Family Residential
Troubled Debt Restructurings Returned to Accrual Status	$ 111	235	$ 345	235
Commercial Real Estate
Troubled Debt Restructurings Returned to Accrual Status		100		100
Consumer Loan
Troubled Debt Restructurings Returned to Accrual Status		$ 69		$ 89