Note 7: Investments in Limited Partnerships: Investments in Community Development Entities Policy (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Number of Investments in Community Development Entities	3	3
Investments in Community Development Entities Net Carrying Amount	$ 6,800	$ 7,100
Community Development Federal New Market Tax Credits	8,800
Expected Amortization of Investment in Community Development Entities	5,900
Usage of Investment in Community Development Entities Federal New Market Tax Credits	1,700	1,700	1,100
Actual Amortization of Investment in Community Development Entities	$ 1,100	$ 1,100	$ 727