Note 8: Loss Sharing Agreements and FDIC Indemnification Assets: TeamBank Business Combination Policy (Details) (TeamBank, USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
TeamBank
Acquired Loans and Amount Accreted to Yield	$ 267,000	$ 588,000	$ 1,000,000	$ 2,000,000