Note 6: Loans and Allowance For Loan Losses: Schedule of Loans Classified by Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivables, 30 to 59 Days Past Due | Consumer Loan
Financing Receivables, By Class	$ 620	$ 943
Financing Receivables, 30 to 59 Days Past Due | Automobile Loan
Financing Receivables, By Class	2,293	3,351
Financing Receivables, 30 to 59 Days Past Due | One-to-Four-Family Residential Construction
Financing Receivables, By Class		649
Financing Receivables, 30 to 59 Days Past Due | Land Improvements
Financing Receivables, By Class	42	2,245
Financing Receivables, 30 to 59 Days Past Due | Commercial Construction
Financing Receivables, By Class		1
Financing Receivables, 30 to 59 Days Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	1,129	1,217
Financing Receivables, 30 to 59 Days Past Due | NonOwnerOccupiedOneToFourFamilyResidentialMember
Financing Receivables, By Class	796
Financing Receivables, 30 to 59 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	2,319	1,035
Financing Receivables, 30 to 59 Days Past Due | Commercial Business
Financing Receivables, By Class	76	1,020
Financing Receivables, 30 to 59 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	1,091	212
Financing Receivables, 30 to 59 Days Past Due | Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	8,068	7,936
Financing Receivables, 30 to 59 Days Past Due | Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	45	989
Financing Receivables, 30 to 59 Days Past Due | Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	532	1,081
Financing Receivables, 30 to 59 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	17,011	20,679
Financing Receivables, 30 to 59 Days Past Due | Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	8,645	10,006
Financing Receivables, 30 to 59 Days Past Due | Loans Receivable
Financing Receivables, By Class	8,366	10,673
Financing Receivables, 60 to 89 Days Past Due | Consumer Loan
Financing Receivables, By Class	90	236
Financing Receivables, 60 to 89 Days Past Due | Automobile Loan
Financing Receivables, By Class	480	891
Financing Receivables, 60 to 89 Days Past Due | Land Improvements
Financing Receivables, By Class	429	148
Financing Receivables, 60 to 89 Days Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	90	345
Financing Receivables, 60 to 89 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	5,383	471
Financing Receivables, 60 to 89 Days Past Due | Commercial Business
Financing Receivables, By Class	51	9
Financing Receivables, 60 to 89 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	40	123
Financing Receivables, 60 to 89 Days Past Due | Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	217	603
Financing Receivables, 60 to 89 Days Past Due | Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	63	39
Financing Receivables, 60 to 89 Days Past Due | Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	150	638
Financing Receivables, 60 to 89 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	6,993	3,503
Financing Receivables, 60 to 89 Days Past Due | Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	430	1,280
Financing Receivables, 60 to 89 Days Past Due | Loans Receivable
Financing Receivables, By Class	6,563	2,223
Financing Receivables, Equal to Greater than 90 Days Past Due | Consumer Loan
Financing Receivables, By Class	656	576
Financing Receivables, Equal to Greater than 90 Days Past Due | Automobile Loan
Financing Receivables, By Class	918	721
Financing Receivables, Equal to Greater than 90 Days Past Due | Subdivision Construction
Financing Receivables, By Class	143
Financing Receivables, Equal to Greater than 90 Days Past Due | Land Improvements
Financing Receivables, By Class	106	139
Financing Receivables, Equal to Greater than 90 Days Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	892	715
Financing Receivables, Equal to Greater than 90 Days Past Due | NonOwnerOccupiedOneToFourFamilyResidentialMember
Financing Receivables, By Class	336	345
Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	9,779	13,488
Financing Receivables, Equal to Greater than 90 Days Past Due | Commercial Business
Financing Receivables, By Class	181	288
Financing Receivables, Equal to Greater than 90 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	337	297
Financing Receivables, Equal to Greater than 90 Days Past Due | Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	10,451	9,712
Financing Receivables, Equal to Greater than 90 Days Past Due | Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	10	33
Financing Receivables, Equal to Greater than 90 Days Past Due | Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	5,500	5,914
Financing Receivables, Equal to Greater than 90 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	29,309	32,228
Financing Receivables, Equal to Greater than 90 Days Past Due | Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	15,961	15,659
Financing Receivables, Equal to Greater than 90 Days Past Due | Loans Receivable
Financing Receivables, By Class	13,348	16,569
Financing Receivables Past Due | Consumer Loan
Financing Receivables, By Class	1,366	1,755
Financing Receivables Past Due | Automobile Loan
Financing Receivables, By Class	3,691	4,963
Financing Receivables Past Due | One-to-Four-Family Residential Construction
Financing Receivables, By Class		649
Financing Receivables Past Due | Subdivision Construction
Financing Receivables, By Class	143
Financing Receivables Past Due | Land Improvements
Financing Receivables, By Class	577	2,532
Financing Receivables Past Due | Commercial Construction
Financing Receivables, By Class		1
Financing Receivables Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	2,111	2,277
Financing Receivables Past Due | NonOwnerOccupiedOneToFourFamilyResidentialMember
Financing Receivables, By Class	1,132	345
Financing Receivables Past Due | Commercial Real Estate
Financing Receivables, By Class	17,481	14,994
Financing Receivables Past Due | Commercial Business
Financing Receivables, By Class	308	1,317
Financing Receivables Past Due | Home Equity Line of Credit
Financing Receivables, By Class	1,468	632
Financing Receivables Past Due | Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	18,736	18,251
Financing Receivables Past Due | Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	118	1,061
Financing Receivables Past Due | Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	6,182	7,633
Financing Receivables Past Due | Loans Receivable, Gross
Financing Receivables, By Class	53,313	56,410
Financing Receivables Past Due | Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	25,036	26,945
Financing Receivables Past Due | Loans Receivable
Financing Receivables, By Class	28,277	29,465
Financing Receivables Current | Consumer Loan
Financing Receivables, By Class	73,621	73,074
Financing Receivables Current | Automobile Loan
Financing Receivables, By Class	465,230	434,932
Financing Receivables Current | One-to-Four-Family Residential Construction
Financing Receivables, By Class	27,807	22,877
Financing Receivables Current | Subdivision Construction
Financing Receivables, By Class	28,185	38,504
Financing Receivables Current | Land Improvements
Financing Receivables, By Class	65,521	55,908
Financing Receivables Current | Commercial Construction
Financing Receivables, By Class	629,846	600,793
Financing Receivables Current | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	226,465	108,000
Financing Receivables Current | NonOwnerOccupiedOneToFourFamilyResidentialMember
Financing Receivables, By Class	147,329	149,529
Financing Receivables Current | Commercial Real Estate
Financing Receivables, By Class	1,030,699	1,028,480
Financing Receivables Current | Other Residential
Financing Receivables, By Class	415,117	419,549
Financing Receivables Current | Commercial Business
Financing Receivables, By Class	352,118	356,263
Financing Receivables Current | Industrial Revenue Bonds
Financing Receivables, By Class	36,407	37,362
Financing Receivables Current | Home Equity Line of Credit
Financing Receivables, By Class	97,292	83,334
Financing Receivables Current | Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	205,606	217,820
Financing Receivables Current | Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	31,643	32,277
Financing Receivables Current | Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	82,036	85,803
Financing Receivables Current | Loans Receivable, Gross
Financing Receivables, By Class	3,914,922	3,744,505
Financing Receivables Current | Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	319,285	335,900
Financing Receivables Current | Loans Receivable
Financing Receivables, By Class	3,595,637	3,408,605
Financing Receivables, Total | Consumer Loan
Financing Receivables, By Class	74,987	74,829
Financing Receivables, Total | Automobile Loan
Financing Receivables, By Class	468,921	439,895
Financing Receivables, Total | One-to-Four-Family Residential Construction
Financing Receivables, By Class	27,807	23,526
Financing Receivables, Total | Subdivision Construction
Financing Receivables, By Class	28,328	38,504
Financing Receivables, Total | Land Improvements
Financing Receivables, By Class	66,098	58,440
Financing Receivables, Total | Commercial Construction
Financing Receivables, By Class	629,846	600,794
Financing Receivables, Total | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	228,576	110,277
Financing Receivables, Total | NonOwnerOccupiedOneToFourFamilyResidentialMember
Financing Receivables, By Class	148,461	149,874
Financing Receivables, Total | Commercial Real Estate
Financing Receivables, By Class	1,048,180	1,043,474
Financing Receivables, Total | Other Residential
Financing Receivables, By Class	415,117	419,549
Financing Receivables, Total | Commercial Business
Financing Receivables, By Class	352,426	357,580
Financing Receivables, Total | Industrial Revenue Bonds
Financing Receivables, By Class	36,407	37,362
Financing Receivables, Total | Home Equity Line of Credit
Financing Receivables, By Class	98,760	83,966
Financing Receivables, Total | Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	224,342	236,071
Financing Receivables, Total | Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	31,761	33,338
Financing Receivables, Total | Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	88,218	93,436
Financing Receivables, Total | Loans Receivable, Gross
Financing Receivables, By Class	3,968,235	3,800,915
Financing Receivables, Total | Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	344,321	362,845
Financing Receivables, Total | Loans Receivable
Financing Receivables, By Class	3,623,914	$ 3,438,070
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	33
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | NonOwnerOccupiedOneToFourFamilyResidentialMember
Financing Receivables, By Class	60
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Home Equity Line of Credit
Financing Receivables, By Class	4
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	172
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Loans Receivable, Gross
Financing Receivables, By Class	269
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	172
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Loans Receivable
Financing Receivables, By Class	$ 97