Note 8: Other Real Estate Owned: Schedule of Expenses Applicable to Foreclosed Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Details
Net (gain) loss on sales of other real estate owned	$ (549)	$ (311)	$ (1,998)	$ (1,098)
Valuation write-downs on foreclosed assets	178	462	3,551	522
Operating expenses, net of rental income	869	1,192	2,823	3,171
Total foreclosed assets expenses	$ 498	$ 1,343	$ 4,376	$ 2,595