Note 6: Loans and Allowance For Loan Losses: Schedule of Loans Classified by Aging Analysis (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivables, 30 to 59 Days Past Due
Financing Receivables, By Class	$ 6,625
Financing Receivables, 30 to 59 Days Past Due \| Consumer Loan
Financing Receivables, By Class	644	$ 943
Financing Receivables, 30 to 59 Days Past Due \| Automobile Loan
Financing Receivables, By Class	4,217	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 Development
Financing Receivables, By Class	5	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	89	1,217
Financing Receivables, 30 to 59 Days Past Due \| Commercial Real Estate
Financing Receivables, By Class	59	1,035
Financing Receivables, 30 to 59 Days Past Due \| Other Residential
Financing Receivables, By Class	178
Financing Receivables, 30 to 59 Days Past Due \| Commercial Business
Financing Receivables, By Class	93	1,020
Financing Receivables, 30 to 59 Days Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	308	212
Financing Receivables, 30 to 59 Days Past Due \| Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	358	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	118	989
Financing Receivables, 30 to 59 Days Past Due \| Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	556	1,081
Financing Receivables, 30 to 59 Days Past Due \| Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	1,032	10,006
Financing Receivables, 30 to 59 Days Past Due \| Loans Receivable
Financing Receivables, By Class	5,593	10,673
Financing Receivables, 30 to 59 Days Past Due \| Loans Receivable, Gross
Financing Receivables, By Class		20,679
Financing Receivables, 60 to 89 Days Past Due
Financing Receivables, By Class	4,453
Financing Receivables, 60 to 89 Days Past Due \| Consumer Loan
Financing Receivables, By Class	273	236
Financing Receivables, 60 to 89 Days Past Due \| Automobile Loan
Financing Receivables, By Class	1,353	891
Financing Receivables, 60 to 89 Days Past Due \| Land Development
Financing Receivables, By Class	40	148
Financing Receivables, 60 to 89 Days Past Due \| Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	636	345
Financing Receivables, 60 to 89 Days Past Due \| Commercial Real Estate
Financing Receivables, By Class	122	471
Financing Receivables, 60 to 89 Days Past Due \| Commercial Business
Financing Receivables, By Class	22	9
Financing Receivables, 60 to 89 Days Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	1	123
Financing Receivables, 60 to 89 Days Past Due \| Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	1,890	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	105	39
Financing Receivables, 60 to 89 Days Past Due \| Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	11	638
Financing Receivables, 60 to 89 Days Past Due \| Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	2,006	1,280
Financing Receivables, 60 to 89 Days Past Due \| Loans Receivable
Financing Receivables, By Class	2,447	2,223
Financing Receivables, 60 to 89 Days Past Due \| Loans Receivable, Gross
Financing Receivables, By Class		3,503
Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivables, By Class	28,097
Financing Receivables, Equal to Greater than 90 Days Past Due \| Consumer Loan
Financing Receivables, By Class	680	576
Financing Receivables, Equal to Greater than 90 Days Past Due \| Automobile Loan
Financing Receivables, By Class	1,522	721
Financing Receivables, Equal to Greater than 90 Days Past Due \| Subdivision Construction
Financing Receivables, By Class	111
Financing Receivables, Equal to Greater than 90 Days Past Due \| Land Development
Financing Receivables, By Class	1,715	139
Financing Receivables, Equal to Greater than 90 Days Past Due \| Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	951	715
Financing Receivables, Equal to Greater than 90 Days Past Due \| Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	347	345
Financing Receivables, Equal to Greater than 90 Days Past Due \| Commercial Real Estate
Financing Receivables, By Class	7,054	13,488
Financing Receivables, Equal to Greater than 90 Days Past Due \| Commercial Business
Financing Receivables, By Class	455	288
Financing Receivables, Equal to Greater than 90 Days Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	338	297
Financing Receivables, Equal to Greater than 90 Days Past Due \| Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	8,241	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	2,277	33
Financing Receivables, Equal to Greater than 90 Days Past Due \| Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	4,406	5,914
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	14,924	15,659
Financing Receivables, Equal to Greater than 90 Days Past Due \| Loans Receivable
Financing Receivables, By Class	13,173	16,569
Financing Receivables, Equal to Greater than 90 Days Past Due \| Loans Receivable, Gross
Financing Receivables, By Class		32,228
Financing Receivables Past Due
Financing Receivables, By Class	39,175
Financing Receivables Past Due \| Consumer Loan
Financing Receivables, By Class	1,597	1,755
Financing Receivables Past Due \| Automobile Loan
Financing Receivables, By Class	7,092	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	111
Financing Receivables Past Due \| Land Development
Financing Receivables, By Class	1,760	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	1,676	2,277
Financing Receivables Past Due \| Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	347	345
Financing Receivables Past Due \| Commercial Real Estate
Financing Receivables, By Class	7,235	14,994
Financing Receivables Past Due \| Other Residential
Financing Receivables, By Class	178
Financing Receivables Past Due \| Commercial Business
Financing Receivables, By Class	570	1,317
Financing Receivables Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	647	632
Financing Receivables Past Due \| Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	10,489	18,251
Financing Receivables Past Due \| Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	2,500	1,061
Financing Receivables Past Due \| Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	4,973	7,633
Financing Receivables Past Due \| Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	17,962	26,945
Financing Receivables Past Due \| Loans Receivable
Financing Receivables, By Class	21,213	29,465
Financing Receivables Past Due \| Loans Receivable, Gross
Financing Receivables, By Class		56,410
Financing Receivables Current
Financing Receivables, By Class	4,276,948
Financing Receivables Current \| Consumer Loan
Financing Receivables, By Class	68,802	73,074
Financing Receivables Current \| Automobile Loan
Financing Receivables, By Class	491,006	434,932
Financing Receivables Current \| One-to-Four-Family Residential Construction
Financing Receivables, By Class	26,540	22,877
Financing Receivables Current \| Subdivision Construction
Financing Receivables, By Class	16,836	38,504
Financing Receivables Current \| Land Development
Financing Receivables, By Class	51,825	55,908
Financing Receivables Current \| Commercial Construction
Financing Receivables, By Class	700,232	600,793
Financing Receivables Current \| Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	213,625	108,000
Financing Receivables Current \| Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	137,153	149,529
Financing Receivables Current \| Commercial Real Estate
Financing Receivables, By Class	1,165,287	1,028,480
Financing Receivables Current \| Other Residential
Financing Receivables, By Class	642,932	419,549
Financing Receivables Current \| Commercial Business
Financing Receivables, By Class	346,799	356,263
Financing Receivables Current \| Industrial Revenue Bonds
Financing Receivables, By Class	25,215	37,362
Financing Receivables Current \| Home Equity Line of Credit
Financing Receivables, By Class	103,367	83,334
Financing Receivables Current \| Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	133,931	217,820
Financing Receivables Current \| Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	76,385	32,277
Financing Receivables Current \| Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	77,013	85,803
Financing Receivables Current \| Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	287,329	335,900
Financing Receivables Current \| Loans Receivable
Financing Receivables, By Class	3,989,619	3,408,605
Financing Receivables Current \| Loans Receivable, Gross
Financing Receivables, By Class		3,744,505
Financing Receivables, Total
Financing Receivables, By Class	4,316,123
Financing Receivables, Total \| Consumer Loan
Financing Receivables, By Class	70,399	74,829
Financing Receivables, Total \| Automobile Loan
Financing Receivables, By Class	498,098	439,895
Financing Receivables, Total \| One-to-Four-Family Residential Construction
Financing Receivables, By Class	26,540	23,526
Financing Receivables, Total \| Subdivision Construction
Financing Receivables, By Class	16,947	38,504
Financing Receivables, Total \| Land Development
Financing Receivables, By Class	53,585	58,440
Financing Receivables, Total \| Commercial Construction
Financing Receivables, By Class	700,232	600,794
Financing Receivables, Total \| Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	215,301	110,277
Financing Receivables, Total \| Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	137,500	149,874
Financing Receivables, Total \| Commercial Real Estate
Financing Receivables, By Class	1,172,522	1,043,474
Financing Receivables, Total \| Other Residential
Financing Receivables, By Class	643,110	419,549
Financing Receivables, Total \| Commercial Business
Financing Receivables, By Class	347,369	357,580
Financing Receivables, Total \| Industrial Revenue Bonds
Financing Receivables, By Class	25,215	37,362
Financing Receivables, Total \| Home Equity Line of Credit
Financing Receivables, By Class	104,014	83,966
Financing Receivables, Total \| Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	144,420	236,071
Financing Receivables, Total \| Acquired Loans No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Financing Receivables, By Class	78,885	33,338
Financing Receivables, Total \| Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	81,986	93,436
Financing Receivables, Total \| Less FDIC Supported Loans and Acquired Not Covered Loans Net Of Discounts
Financing Receivables, By Class	305,291	362,845
Financing Receivables, Total \| Loans Receivable
Financing Receivables, By Class	4,010,832	3,438,070
Financing Receivables, Total \| Loans Receivable, Gross
Financing Receivables, By Class		$ 3,800,915
Financing Receivables Greater Than 90 Days Past Due and Still Accruing
Financing Receivables, By Class	727
Financing Receivables Greater Than 90 Days Past Due and Still Accruing \| Consumer Loan
Financing Receivables, By Class	3
Financing Receivables Greater Than 90 Days Past Due and Still Accruing \| Automobile Loan
Financing Receivables, By Class	1
Financing Receivables Greater Than 90 Days Past Due and Still Accruing \| Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	14
Financing Receivables Greater Than 90 Days Past Due and Still Accruing \| Acquired FDIC Covered Loans Net of Discount
Financing Receivables, By Class	117
Financing Receivables Greater Than 90 Days Past Due and Still Accruing \| Acquired Non-Covered Loans Net of Discounts
Financing Receivables, By Class	592
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	709
Financing Receivables Greater Than 90 Days Past Due and Still Accruing \| Loans Receivable
Financing Receivables, By Class	$ 18

Note 6: Loans and Allowance For Loan Losses: Schedule of Loans Classified by Aging Analysis (Details) - USD ($)
$ in Thousands

Sep. 30, 2016

Dec. 31, 2015

Financing Receivables, 30 to 59 Days Past Due

Financing Receivables, By Class

$ 6,625

Financing Receivables, 30 to 59 Days Past Due | Consumer Loan

Financing Receivables, By Class

644

$ 943

Financing Receivables, 30 to 59 Days Past Due | Automobile Loan

Financing Receivables, By Class