Note 6: Loans and Allowance For Loan Losses: Troubled Debt Restructurings on Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Consumer
Troubled Debt Restructuring Loans Modified Term	$ 18	$ 58
Troubled Debt Restructurings Total New Modifications	18	58
Total Newly Restructured Loans
Troubled Debt Restructuring Loans Interest Only		3,435
Troubled Debt Restructuring Loans Modified Term	18	80
Troubled Debt Restructurings Total New Modifications	$ 18	3,515
One-to-Four-Family Residential | Mortgage Loan On Real Estate
Troubled Debt Restructuring Loans Interest Only		429
Troubled Debt Restructurings Total New Modifications		429
Commercial Real Estate
Troubled Debt Restructuring Loans Interest Only		60
Troubled Debt Restructurings Total New Modifications		60
Construction and Land Development | Mortgage Loan On Real Estate
Troubled Debt Restructuring Loans Interest Only		2,946
Troubled Debt Restructurings Total New Modifications		2,946
Commercial Business
Troubled Debt Restructuring Loans Modified Term		22
Troubled Debt Restructurings Total New Modifications		$ 22