Note 4: Acquired Loans, Loss Sharing Agreements and FDIC Indemnification Assets: Schedule Of InterBank FDIC Indemnification Asset (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
InterBank Loans
Initial basis for loss sharing determination, net of activity since acquisition date	$ 244,977	$ 284,975
Non-credit premium (discount), net of activity since acquisition date	1,361	1,905
Reclassification from nonaccretable discount to accretable discount due to change in expected losses (net of accretion to date)	(19,566)	(21,218)
Original estimated fair value of assets, net of activity since acquisition date	(201,830)	(213,539)
Expected loss remaining	24,942	52,123
Assumed loss sharing recovery percentage	82.00%	82.00%
Estimated loss sharing value	20,509	42,654
FDIC loss share clawback	3,620	2,893
Indemnification assets to be amortized resulting from change in expected losses	15,652	16,974
Accretable discount on FDIC indemnification asset	(2,967)	(4,874)
FDIC Indemnification Asset, Total	36,814	57,647
InterBank Foreclosed Assets
Initial basis for loss sharing determination, net of activity since acquisition date	4,494	6,543
Original estimated fair value of assets, net of activity since acquisition date	(3,986)	(5,073)
Expected loss remaining	508	1,470
Assumed loss sharing recovery percentage	80.00%	80.00%
Estimated loss sharing value	406	1,176
Accretable discount on FDIC indemnification asset	(33)	(33)
FDIC Indemnification Asset, Total	$ 373	$ 1,143