Note 7: Loans and Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
SatisfactoryMember | OneToFourFamilyResidentialConstructionMember
Loan Portfolio Internal Grading System Classification	$ 33,390	$ 28,662
SatisfactoryMember | SubdivisionConstructionMember
Loan Portfolio Internal Grading System Classification	29,840	31,156
SatisfactoryMember | LandDevelopmentMember
Loan Portfolio Internal Grading System Classification	47,007	47,388
SatisfactoryMember | CommercialConstructionMember
Loan Portfolio Internal Grading System Classification	174,691	150,515
SatisfactoryMember | OwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	82,953	79,411
SatisfactoryMember | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	135,512	132,073
SatisfactoryMember | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	698,740	619,387
SatisfactoryMember | OtherResidentialMember
Loan Portfolio Internal Grading System Classification	237,645	252,238
SatisfactoryMember | CommercialBusinessMember
Loan Portfolio Internal Grading System Classification	272,966	253,165
SatisfactoryMember | IndustrialRevenueBondsMember
Loan Portfolio Internal Grading System Classification	38,319	40,977
SatisfactoryMember | Consumer Loans Auto Financing Receivable
Loan Portfolio Internal Grading System Classification	122,158	82,467
SatisfactoryMember | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	83,154	83,250
SatisfactoryMember | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	54,589	52,076
SatisfactoryMember | FDICSupportedLoansNetOfDiscountsTeamBankMember
Loan Portfolio Internal Grading System Classification	55,626	77,568
SatisfactoryMember | FDICSupportedLoansNetOfDiscountsVantusBankMember
Loan Portfolio Internal Grading System Classification	68,186	95,281
SatisfactoryMember | FDICSupportedLoansNetOfDiscountsSunSecurityBankMember
Loan Portfolio Internal Grading System Classification	70,020	91,519
SatisfactoryMember | FDICSupportedLoansNetOfDiscountsInterBankMember
Loan Portfolio Internal Grading System Classification	218,962	259,210
SatisfactoryMember | Loans Receivable
Loan Portfolio Internal Grading System Classification	2,423,758	2,376,343
WatchMember | OneToFourFamilyResidentialConstructionMember
Loan Portfolio Internal Grading System Classification	64
WatchMember | SubdivisionConstructionMember
Loan Portfolio Internal Grading System Classification	1,230	2,993
WatchMember | LandDevelopmentMember
Loan Portfolio Internal Grading System Classification	1,464	3,887
WatchMember | OwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	497	792
WatchMember | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	5,954	7,884
WatchMember | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	37,242	42,753
WatchMember | OtherResidentialMember
Loan Portfolio Internal Grading System Classification	12,790	6,793
WatchMember | CommercialBusinessMember
Loan Portfolio Internal Grading System Classification	868	4,286
WatchMember | IndustrialRevenueBondsMember
Loan Portfolio Internal Grading System Classification	675	675
WatchMember | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	6
WatchMember | Loans Receivable
Loan Portfolio Internal Grading System Classification	60,790	70,063
Special Mention | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	1,885	1,913
Special Mention | Loans Receivable
Loan Portfolio Internal Grading System Classification	1,885	1,913
Substandard | OneToFourFamilyResidentialConstructionMember
Loan Portfolio Internal Grading System Classification		409
Substandard | SubdivisionConstructionMember
Loan Portfolio Internal Grading System Classification	3,194	1,656
Substandard | LandDevelopmentMember
Loan Portfolio Internal Grading System Classification	13,896	11,284
Substandard | OwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	2,940	3,656
Substandard | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	2,635	5,501
Substandard | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	21,696	30,237
Substandard | OtherResidentialMember
Loan Portfolio Internal Grading System Classification	2,173	8,487
Substandard | CommercialBusinessMember
Loan Portfolio Internal Grading System Classification	6,041	6,180
Substandard | IndustrialRevenueBondsMember
Loan Portfolio Internal Grading System Classification	2,023	2,110
Substandard | Consumer Loans Auto Financing Receivable
Loan Portfolio Internal Grading System Classification	171	143
Substandard | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	478	565
Substandard | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	410	236
Substandard | FDICSupportedLoansNetOfDiscountsTeamBankMember
Loan Portfolio Internal Grading System Classification	199	47
Substandard | FDICSupportedLoansNetOfDiscountsVantusBankMember
Loan Portfolio Internal Grading System Classification	304	202
Substandard | FDICSupportedLoansNetOfDiscountsInterBankMember
Loan Portfolio Internal Grading System Classification		22
Substandard | Loans Receivable
Loan Portfolio Internal Grading System Classification	56,160	70,735
Doubtful | CommercialBusinessMember
Loan Portfolio Internal Grading System Classification		1,000
Doubtful | Loans Receivable
Loan Portfolio Internal Grading System Classification		1,000
TotalForPortfolioMember | OneToFourFamilyResidentialConstructionMember
Loan Portfolio Internal Grading System Classification	33,454	29,071
TotalForPortfolioMember | SubdivisionConstructionMember
Loan Portfolio Internal Grading System Classification	34,264	35,805
TotalForPortfolioMember | LandDevelopmentMember
Loan Portfolio Internal Grading System Classification	62,367	62,559
TotalForPortfolioMember | CommercialConstructionMember
Loan Portfolio Internal Grading System Classification	174,691	150,515
TotalForPortfolioMember | OwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	86,390	83,859
TotalForPortfolioMember | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	144,101	145,458
TotalForPortfolioMember | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	757,678	692,377
TotalForPortfolioMember | OtherResidentialMember
Loan Portfolio Internal Grading System Classification	252,608	267,518
TotalForPortfolioMember | CommercialBusinessMember
Loan Portfolio Internal Grading System Classification	279,874	264,631
TotalForPortfolioMember | IndustrialRevenueBondsMember
Loan Portfolio Internal Grading System Classification	41,017	43,762
TotalForPortfolioMember | Consumer Loans Auto Financing Receivable
Loan Portfolio Internal Grading System Classification	122,329	82,610
TotalForPortfolioMember | Consumer Other Financing Receivable
Loan Portfolio Internal Grading System Classification	83,638	83,815
TotalForPortfolioMember | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	56,885	54,225
TotalForPortfolioMember | FDICSupportedLoansNetOfDiscountsTeamBankMember
Loan Portfolio Internal Grading System Classification	55,825	77,615
TotalForPortfolioMember | FDICSupportedLoansNetOfDiscountsVantusBankMember
Loan Portfolio Internal Grading System Classification	68,490	95,483
TotalForPortfolioMember | FDICSupportedLoansNetOfDiscountsSunSecurityBankMember
Loan Portfolio Internal Grading System Classification	70,020	91,519
TotalForPortfolioMember | FDICSupportedLoansNetOfDiscountsInterBankMember
Loan Portfolio Internal Grading System Classification	218,962	259,232
TotalForPortfolioMember | Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 2,542,593	$ 2,520,054