Note 6: Investment Securities: Schedule of Debt Securities with Credit Loss Recognized in income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Balance Beginning of Period
Accumulated Credit Losses	$ 3,860	$ 3,383	$ 3,598	$ 2,983
Additions related to increases in credit losses on debt securities for which OTTI losses were previously recognized
Accumulated Credit Losses			262	400
Balance End of Period
Accumulated Credit Losses	$ 3,860	$ 3,383	$ 3,860	$ 3,383