Note 6: Investment Securities: Non-Agency Collateralized Mortgage Obligation Policy (Details) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Non-Agency Collateralized Mortgage Obligations Book Value Other Than Temporary	$ 962,000	$ 1,800,000
Non-Agency Collateralized Mortgage Obligations Book Value Other Than Temporary Pretax Charge to Income	$ 262,000	$ 400,000