Note 5: Other Real Estate Owned: Schedule of expenses applicable to other real estate owned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Details
Net (Gain) Loss on Sales of Other Real Estate	$ (2,212)	$ (68)	$ (397)
Valuation write-downs on foreclosed assets	1,585	431	890
Operating expenses, net of rental income	4,556	3,748	2,033
Total foreclosed assets expenses	$ 3,929	$ 4,111	$ 2,526