Note 8: Other Real Estate Owned: Schedule of Major Classifications of Foreclosed Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Foreclosed Assets Held For Sale | One-to-Four-Family Residential Construction
Foreclosed Assets	$ 0	$ 0
Foreclosed Assets Held For Sale | Subdivision Construction
Foreclosed Assets	5,118	6,360
Foreclosed Assets Held For Sale | Land Development
Foreclosed Assets	10,052	10,886
Foreclosed Assets Held For Sale | Commercial Construction
Foreclosed Assets	0	0
Foreclosed Assets Held For Sale | One-to-Four-Family Residential
Foreclosed Assets	203	1,217
Foreclosed Assets Held For Sale | Other Residential
Foreclosed Assets	161	954
Foreclosed Assets Held For Sale | Commercial Real Estate
Foreclosed Assets	3,214	3,841
Foreclosed Assets Held For Sale | Commercial Business
Foreclosed Assets	2,876	0
Foreclosed Assets Held For Sale | Consumer Loan
Foreclosed Assets	1,793	1,991
Foreclosed Assets Held For Sale | Foreclosed Assets Before FDIC Supported Foreclosed Assets
Foreclosed Assets	23,417	25,249
Foreclosed Assets Held For Sale | FDIC Supported Foreclosed Assets Net of Discounts
Foreclosed Assets	0	1,426
Foreclosed Assets Held For Sale | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Foreclosed Assets	2,861	316
Foreclosed Assets Held For Sale | Acquired foreclosed assets not covered by FDIC loss sharing agreements, net of discounts
Foreclosed Assets	1,774	1,952
Foreclosed Assets Held For Sale, Net
Foreclosed Assets	28,052	28,943
Other Real Estate Owned Not Acquired Through Foreclosure
Foreclosed Assets	2,064	3,715
Other real estate owned
Foreclosed Assets	$ 30,116	$ 32,658