Note 7: Investments in Limited Partnerships: Investments in Community Development Entities Policy (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Details
Number of Investments in Community Development Entities	4	4
Investments in Community Development Entities Net Carrying Amount	$ 3,500	$ 5,100
Community Development Federal New Market Tax Credits	4,700
Expected Amortization of Investment in Community Development Entities	3,300
Usage of Investment in Community Development Entities Federal New Market Tax Credits	2,300	2,300	$ 2,300
Actual Amortization of Investment in Community Development Entities	$ 1,700	$ 1,700	$ 1,600