Note 12: Fair Value Measurement: Schedule of Fair Value Measurements of Assets on Nonrecurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Impaired loans | Impaired one- to four-family residential construction
Fair Value Assets on Nonrecurring Basis	$ 502	$ 964
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	502	964
Impaired loans | Impaired subdivision construction
Fair Value Assets on Nonrecurring Basis	1,905	3,188
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	1,905	3,188
Impaired loans | Impaired land development
Fair Value Assets on Nonrecurring Basis	4,070	4,298
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	4,070	4,298
Impaired loans | Impaired owner occupied one- to four-family residential
Fair Value Assets on Nonrecurring Basis	2,693	2,210
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	2,693	2,210
Impaired loans | Impaired non-owner occupied one- to four-family residential
Fair Value Assets on Nonrecurring Basis	4,054	4,639
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	4,054	4,639
Impaired loans | Impaired commercial real estate
Fair Value Assets on Nonrecurring Basis	31,219	13,354
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	31,219	13,354
Impaired loans | Impaired Other residential
Fair Value Assets on Nonrecurring Basis	8,143	4,771
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	8,143	4,771
Impaired loans | Impaired commercial business
Fair Value Assets on Nonrecurring Basis	3,381	3,207
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	3,381	3,207
Impaired loans | Impaired consumer auto
Fair Value Assets on Nonrecurring Basis		46
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)		46
Impaired loans | Impaired consumer other
Fair Value Assets on Nonrecurring Basis	299	258
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	299	258
Impaired loans | Impaired home equity lines of credit
Fair Value Assets on Nonrecurring Basis	45	46
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	45	46
Impaired loans | Impaired total
Fair Value Assets on Nonrecurring Basis	56,374	36,981
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	56,374	36,981
Foreclosed assets held for sale
Fair Value Assets on Nonrecurring Basis	5,093	14,042
Fair Value Measurements Assets Nonrecurring Using Significant Unobservable Inputs (Level 3)	$ 5,093	$ 14,042