Note 8: Other Real Estate Owned and Repossessions: Schedule of Major Classifications of Foreclosed Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Foreclosed Assets Held For Sale | One-to-Four-Family Residential Construction
Foreclosed Assets	$ 0	$ 0
Foreclosed Assets Held For Sale | Subdivision Construction
Foreclosed Assets	971	1,092
Foreclosed Assets Held For Sale | Land Development
Foreclosed Assets	3,041	3,191
Foreclosed Assets Held For Sale | Commercial Construction
Foreclosed Assets	0	0
Foreclosed Assets Held For Sale | One-to-Four-Family Residential
Foreclosed Assets	985	269
Foreclosed Assets Held For Sale | Other Residential
Foreclosed Assets	0	0
Foreclosed Assets Held For Sale | Commercial Real Estate
Foreclosed Assets	0	0
Foreclosed Assets Held For Sale | Commercial Business
Foreclosed Assets	0	0
Foreclosed Assets Held For Sale | Consumer Loan
Foreclosed Assets	697	928
Foreclosed Assets Held For Sale | Foreclosed Assets Before FDIC-Assisted Acquired Assets
Foreclosed Assets	5,694	5,480
Foreclosed Assets Held For Sale | Foreclosed Assets Acquired Through FDIC-Assisted Transactions, Net of Discount
Foreclosed Assets	1,563	1,401
Foreclosed Assets Held For Sale, Net
Foreclosed Assets	7,257	6,881
Other Real Estate Owned Not Acquired Through Foreclosure
Foreclosed Assets	1,515	1,559
Other real estate owned
Foreclosed Assets	$ 8,772	$ 8,440