Note 8: Loss Sharing Agreements and FDIC Indemnification Assets: Schedule of Business Acquisition TeamBank (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
TeamBank Loans
Initial basis for loss sharing determination, net of activity since acquisition date	$ 102,895	$ 164,284
Non-credit premium (discount), net of activity since acquisition date	(321)	(1,363)
Reclassification from nonaccretable discount to accretable discount due to change in expected losses (net of accretion to date)	(4,199)	(6,093)
Original estimated fair value of assets, net of activity since acquisition date	(87,873)	(128,875)
Expected loss remaining	10,502	27,953
Assumed loss sharing recovery percentage	80.00%	80.00%
Estimated loss sharing value	8,421	22,404
Indemnification assets to be amortized resulting from change in expected losses	3,541	5,726
Accretable discount on FDIC indemnification asset	(1,034)	(2,719)
Total FDIC indemnification asset	10,928	25,411
TeamBank Foreclosed Assets
Initial basis for loss sharing determination, net of activity since acquisition date	15,372	16,225
Original estimated fair value of assets, net of activity since acquisition date	(10,682)	(10,342)
Expected loss remaining	4,690	5,883
Assumed loss sharing recovery percentage	80.00%	80.00%
Estimated loss sharing value	3,783	4,712
Total FDIC indemnification asset	$ 3,783	$ 4,712