Note 7: Loans and Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Satisfactory | One To Four Family Residential Construction
Loan Portfolio Internal Grading System Classification	$ 34,849	$ 34,364
Satisfactory | Subdivision Construction
Loan Portfolio Internal Grading System Classification	26,364	36,524
Satisfactory | Land Development
Loan Portfolio Internal Grading System Classification	49,590	45,606
Satisfactory | Commercial Construction
Loan Portfolio Internal Grading System Classification	223,113	184,019
Satisfactory | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	87,855	84,931
Satisfactory | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	136,970	137,003
Satisfactory | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	767,752	727,668
Satisfactory | Other Residential
Loan Portfolio Internal Grading System Classification	293,432	311,320
Satisfactory | Commercial Business
Loan Portfolio Internal Grading System Classification	315,963	307,540
Satisfactory | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	38,389	39,532
Satisfactory | Consumer Loans Auto Financing Receivable
Loan Portfolio Internal Grading System Classification	160,679	134,516
Satisfactory | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	80,784	81,769
Satisfactory | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	58,157	57,713
Satisfactory | FDIC Supported Loans Net Of Discounts TeamBank
Loan Portfolio Internal Grading System Classification	46,618	49,702
Satisfactory | FDIC Supported Loans Net Of Discounts Vantus Bank
Loan Portfolio Internal Grading System Classification	52,546	57,290
Satisfactory | FDIC Supported Loans Net Of Discounts Sun Security Bank
Loan Portfolio Internal Grading System Classification	62,958	63,360
Satisfactory | FDIC Supported Loans Net Of Discounts InterBank
Loan Portfolio Internal Grading System Classification	212,212	213,539
Satisfactory | Loans Receivable
Loan Portfolio Internal Grading System Classification	2,648,231	2,566,396
Watch | One To Four Family Residential Construction
Loan Portfolio Internal Grading System Classification	410	298
Watch | Subdivision Construction
Loan Portfolio Internal Grading System Classification	789	706
Watch | Land Development
Loan Portfolio Internal Grading System Classification	1,139	1,148
Watch | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	530	503
Watch | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	5,154	6,718
Watch | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	47,833	37,937
Watch | Other Residential
Loan Portfolio Internal Grading System Classification	14,576	12,323
Watch | Commercial Business
Loan Portfolio Internal Grading System Classification	1,485	1,803
Watch | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	675	675
Watch | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	5	6
Watch | Loans Receivable
Loan Portfolio Internal Grading System Classification	72,596	62,117
Substandard | Subdivision Construction
Loan Portfolio Internal Grading System Classification	2,100	3,179
Substandard | Land Development
Loan Portfolio Internal Grading System Classification	11,080	11,087
Substandard | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	3,382	3,699
Substandard | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	2,091	2,187
Substandard | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	12,377	15,085
Substandard | Other Residential
Loan Portfolio Internal Grading System Classification	1,956	1,956
Substandard | Commercial Business
Loan Portfolio Internal Grading System Classification	1,012	3,528
Substandard | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	2,023	2,023
Substandard | Consumer Loans Auto Financing Receivable
Loan Portfolio Internal Grading System Classification	105	201
Substandard | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	479	485
Substandard | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	455	570
Substandard | FDIC Supported Loans Net Of Discounts TeamBank
Loan Portfolio Internal Grading System Classification	176	160
Substandard | FDIC Supported Loans Net Of Discounts Vantus Bank
Loan Portfolio Internal Grading System Classification	548	630
Substandard | FDIC Supported Loans Net Of Discounts Sun Security Bank
Loan Portfolio Internal Grading System Classification	172	1,483
Substandard | Loans Receivable
Loan Portfolio Internal Grading System Classification	37,956	46,273
Doubtful | Commercial Business
Loan Portfolio Internal Grading System Classification	888	2,398
Doubtful | Loans Receivable
Loan Portfolio Internal Grading System Classification	888	2,398
Total For Portfolio | One To Four Family Residential Construction
Loan Portfolio Internal Grading System Classification	35,259	34,662
Total For Portfolio | Subdivision Construction
Loan Portfolio Internal Grading System Classification	29,253	40,409
Total For Portfolio | Land Development
Loan Portfolio Internal Grading System Classification	61,809	57,841
Total For Portfolio | Commercial Construction
Loan Portfolio Internal Grading System Classification	223,113	184,019
Total For Portfolio | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	91,767	89,133
Total For Portfolio | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	144,215	145,908
Total For Portfolio | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	827,962	780,690
Total For Portfolio | Other Residential
Loan Portfolio Internal Grading System Classification	309,964	325,599
Total For Portfolio | Commercial Business
Loan Portfolio Internal Grading System Classification	319,348	315,269
Total For Portfolio | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	41,087	42,230
Total For Portfolio | Consumer Loans Auto Financing Receivable
Loan Portfolio Internal Grading System Classification	160,784	134,717
Total For Portfolio | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	81,268	82,260
Total For Portfolio | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	58,612	58,283
Total For Portfolio | FDIC Supported Loans Net Of Discounts TeamBank
Loan Portfolio Internal Grading System Classification	46,794	49,862
Total For Portfolio | FDIC Supported Loans Net Of Discounts Vantus Bank
Loan Portfolio Internal Grading System Classification	53,094	57,920
Total For Portfolio | FDIC Supported Loans Net Of Discounts Sun Security Bank
Loan Portfolio Internal Grading System Classification	63,130	64,843
Total For Portfolio | FDIC Supported Loans Net Of Discounts InterBank
Loan Portfolio Internal Grading System Classification	212,212	213,539
Total For Portfolio | Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 2,759,671	$ 2,677,184