Note 3: Loans and Allowance For Loan Losses: Schedule of Impaired Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
One- to Four-Family Residential Construction
Impaired Financing Receivable, Recorded Investment	$ 410	$ 873	$ 1,947
Impaired Financing Receivable, Unpaid Principal Balance	410	917	2,371
Impaired Financing Receivable, Related Allowance	239	12	258
Impaired Financing Receivable, Average Recorded Investment	679	1,939	1,724
Loans and Leases Receivable, Impaired, Interest Income Recognized	22	39	83
Subdivision Construction
Impaired Financing Receivable, Recorded Investment	2,577	12,999	9,894
Impaired Financing Receivable, Unpaid Principal Balance	2,580	14,730	10,560
Impaired Financing Receivable, Related Allowance	688	2,953	2,326
Impaired Financing Receivable, Average Recorded Investment	8,399	10,154	7,850
Loans and Leases Receivable, Impaired, Interest Income Recognized	143	282	415
Land Development
Impaired Financing Receivable, Recorded Investment	12,009	7,150	17,957
Impaired Financing Receivable, Unpaid Principal Balance	13,204	7,317	21,006
Impaired Financing Receivable, Related Allowance	96	594	1,925
Impaired Financing Receivable, Average Recorded Investment	12,614	9,983	18,760
Loans and Leases Receivable, Impaired, Interest Income Recognized	656	379	534
Commercial Construction
Impaired Financing Receivable, Recorded Investment			1,851
Impaired Financing Receivable, Unpaid Principal Balance			1,851
Impaired Financing Receivable, Related Allowance			158
Impaired Financing Receivable, Average Recorded Investment	383	308	458
Loans and Leases Receivable, Impaired, Interest Income Recognized			31
Owner Occupied One- to Four-Family Residential
Impaired Financing Receivable, Recorded Investment	5,627	5,481	5,205
Impaired Financing Receivable, Unpaid Principal Balance	6,037	6,105	5,620
Impaired Financing Receivable, Related Allowance	550	776	542
Impaired Financing Receivable, Average Recorded Investment	5,174	4,748	3,612
Loans and Leases Receivable, Impaired, Interest Income Recognized	295	76	69
Non-Owner Occupied One- to Four-Family Residential
Impaired Financing Receivable, Recorded Investment	6,077	11,259	11,785
Impaired Financing Receivable, Unpaid Principal Balance	6,290	11,768	12,267
Impaired Financing Receivable, Related Allowance	811	1,249	1,227
Impaired Financing Receivable, Average Recorded Investment	10,045	9,658	8,182
Loans and Leases Receivable, Impaired, Interest Income Recognized	330	425	386
Commercial Real Estate
Impaired Financing Receivable, Recorded Investment	48,476	49,961	25,782
Impaired Financing Receivable, Unpaid Principal Balance	49,779	55,233	26,392
Impaired Financing Receivable, Related Allowance	4,990	3,562	3,045
Impaired Financing Receivable, Average Recorded Investment	45,181	34,403	10,615
Loans and Leases Receivable, Impaired, Interest Income Recognized	2,176	1,616	603
Other Residential
Impaired Financing Receivable, Recorded Investment	16,405	12,102	9,768
Impaired Financing Receivable, Unpaid Principal Balance	16,405	12,102	9,869
Impaired Financing Receivable, Related Allowance	1,089	89	1,714
Impaired Financing Receivable, Average Recorded Investment	16,951	9,475	8,123
Loans and Leases Receivable, Impaired, Interest Income Recognized	836	454	140
Commercial Business
Impaired Financing Receivable, Recorded Investment	7,279	4,679	9,722
Impaired Financing Receivable, Unpaid Principal Balance	8,615	5,483	12,495
Impaired Financing Receivable, Related Allowance	2,778	736	828
Impaired Financing Receivable, Average Recorded Investment	4,851	4,173	2,630
Loans and Leases Receivable, Impaired, Interest Income Recognized	329	125	114
Industrial Revenue Bonds
Impaired Financing Receivable, Recorded Investment	2,785	2,110
Impaired Financing Receivable, Unpaid Principal Balance	2,865	2,190
Impaired Financing Receivable, Related Allowance		22
Impaired Financing Receivable, Average Recorded Investment	3,034	2,137
Loans and Leases Receivable, Impaired, Interest Income Recognized	5
Consumer Loans Auto Financing Receivable
Impaired Financing Receivable, Recorded Investment	143	147	125
Impaired Financing Receivable, Unpaid Principal Balance	170	168	137
Impaired Financing Receivable, Related Allowance	22	3	4
Impaired Financing Receivable, Average Recorded Investment	157	192	30
Loans and Leases Receivable, Impaired, Interest Income Recognized	17	6	1
Consumer Other Financing Receivable
Impaired Financing Receivable, Recorded Investment	602	579	429
Impaired Financing Receivable, Unpaid Principal Balance	682	680	481
Impaired Financing Receivable, Related Allowance	89	22	14
Impaired Financing Receivable, Average Recorded Investment	654	544	93
Loans and Leases Receivable, Impaired, Interest Income Recognized	65	10	4
Home Equity Line of Credit
Impaired Financing Receivable, Recorded Investment	235	174	148
Impaired Financing Receivable, Unpaid Principal Balance	248	184	166
Impaired Financing Receivable, Related Allowance	45	12	19
Impaired Financing Receivable, Average Recorded Investment	162	227	109
Loans and Leases Receivable, Impaired, Interest Income Recognized	15	1	1
Total Loans
Impaired Financing Receivable, Recorded Investment	102,625	107,514	94,613
Impaired Financing Receivable, Unpaid Principal Balance	107,285	116,877	103,215
Impaired Financing Receivable, Related Allowance	11,397	10,030	12,060
Impaired Financing Receivable, Average Recorded Investment	108,284	87,941	62,186
Loans and Leases Receivable, Impaired, Interest Income Recognized	$ 4,889	$ 3,413	$ 2,381