Note 15: Disclosures About Fair Value of Financial Instruments: Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Interest Rate Derivative Asset
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	$ 496	$ 228
Fair Value Equity Level 3 To Level 2 Transfers Amount	(2,583)
Interest Rate Derivative Asset | Beginning of Period
Increase (Decrease) in Derivative Assets		1,859
Interest Rate Derivative Asset | End of Period
Increase (Decrease) in Derivative Assets		2,087
Interest Rate Cap Derivative Asset Designated as Hedging Instrument
Fair Value Equity Level 3 To Level 2 Transfers Amount	(128)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(287)	(270)
Interest Rate Cap Derivative Asset Designated as Hedging Instrument | Beginning of Period
Derivative Asset Designated as Hedging Instrument Cap	685
Interest Rate Cap Derivative Asset Designated as Hedging Instrument | End of Period
Derivative Asset Designated as Hedging Instrument Cap		415
Interest Rate Derivative Liability
Fair Value Equity Level 3 To Level 2 Transfers Amount	(2,725)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss)	$ 538	574
Interest Rate Derivative Liability | Beginning of Period
Derivative Liability, Fair Value, Gross Liability		1,613
Interest Rate Derivative Liability | End of Period
Derivative Liability, Fair Value, Gross Liability		$ 2,187