Note 14: Disclosures About Fair Value of Financial Instruments: Fair Value Measurement, Policy: Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Mortgage Servicing Rights
Servicing Asset at Fair Value, Additions	$ 12	$ 28	$ 54	$ 81
Amortization of Mortgage Servicing Rights (MSRs)	(29)	(35)	(90)	(103)
Mortgage Servicing Rights | Beginning of Period
Fair Value Mortgage Servicing Rights	166	196	185	211
Mortgage Servicing Rights | End of Period
Fair Value Mortgage Servicing Rights	149	189	149	189
Interest Rate Derivative Asset
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	1,451	(210)	1,530	(347)
Interest Rate Derivative Asset | Beginning of Period
Increase (Decrease) in Derivative Assets	2,166	1,722	2,087	1,859
Interest Rate Derivative Asset | End of Period
Increase (Decrease) in Derivative Assets	3,617	1,512	3,617	1,512
Interest Rate Cap Derivative Asset Designated As Hedging Instrument
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)		81	(171)	(138)
Amortization of cost of interest rate cap	(119)	(5)	(156)	(9)
Interest Rate Cap Derivative Asset Designated As Hedging Instrument | Beginning of Period
Derivative Asset Designated as Hedging Instrument Cap	207	462	415	685
Interest Rate Cap Derivative Asset Designated As Hedging Instrument | End of Period
Derivative Asset Designated as Hedging Instrument Cap	88	538	88	538
Interest Rate Swap Liability
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	1,583	(222)	1,640	(124)
Interest Rate Swap Liability | Beginning of Period
Fair Value Interest Rate Swap Liabilities	2,244	1,711	2,187	1,613
Interest Rate Swap Liability | End of Period
Fair Value Interest Rate Swap Liabilities	$ 3,827	$ 1,489	$ 3,827	$ 1,489