NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Schedule of Loans Classified by Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial Asset, 30 to 59 Days Past Due | Automobile Loan
Financing Receivables, By Class	$ 1,727	$ 2,596
Financial Asset, 30 to 59 Days Past Due | One-to-Four-Family Residential Construction
Financing Receivables, By Class	0	0
Financial Asset, 30 to 59 Days Past Due | Subdivision Construction
Financing Receivables, By Class	53	0
Financial Asset, 30 to 59 Days Past Due | Land Development
Financing Receivables, By Class	78	13
Financial Asset, 30 to 59 Days Past Due | Commercial Construction
Financing Receivables, By Class	0	0
Financial Asset, 30 to 59 Days Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	2,390	1,431
Financial Asset, 30 to 59 Days Past Due | Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	135	1,142
Financial Asset, 30 to 59 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	714	3,940
Financial Asset, 30 to 59 Days Past Due | Other Residential
Financing Receivables, By Class	4,439	0
Financial Asset, 30 to 59 Days Past Due | Commercial Business
Financing Receivables, By Class	74	72
Financial Asset, 30 to 59 Days Past Due | Industrial Revenue Bonds
Financing Receivables, By Class	0	3
Financial Asset, 30 to 59 Days Past Due | Consumer Loan
Financing Receivables, By Class	661	691
Financial Asset, 30 to 59 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	150	229
Financial Asset, 30 to 59 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	3,461	2,195
Financial Asset, 30 to 59 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	13,882	12,312
Financial Asset, 30 to 59 Days Past Due | Less: Acquired Loans Net of Discount
Financing Receivables, By Class	3,461	2,195
Financial Asset, 30 to 59 Days Past Due | Loans Receivable
Financing Receivables, By Class	10,421	10,117
Financial Asset, 60 to 89 Days Past Due | Automobile Loan
Financing Receivables, By Class	417	722
Financial Asset, 60 to 89 Days Past Due | One-to-Four-Family Residential Construction
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Subdivision Construction
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Land Development
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Commercial Construction
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	248	806
Financial Asset, 60 to 89 Days Past Due | Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	36	144
Financial Asset, 60 to 89 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	1,950	53
Financial Asset, 60 to 89 Days Past Due | Other Residential
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Commercial Business
Financing Receivables, By Class	0	54
Financial Asset, 60 to 89 Days Past Due | Industrial Revenue Bonds
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Consumer Loan
Financing Receivables, By Class	72	181
Financial Asset, 60 to 89 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	76	1,416
Financial Asset, 60 to 89 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	2,799	3,376
Financial Asset, 60 to 89 Days Past Due | Less: Acquired Loans Net of Discount
Financing Receivables, By Class	76	1,416
Financial Asset, 60 to 89 Days Past Due | Loans Receivable
Financing Receivables, By Class	2,723	1,960
Financial Asset, Equal to or Greater than 90 Days Past Due | Automobile Loan
Financing Receivables, By Class	822	1,490
Financial Asset, Equal to or Greater than 90 Days Past Due | One-to-Four-Family Residential Construction
Financing Receivables, By Class	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Subdivision Construction
Financing Receivables, By Class	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Land Development
Financing Receivables, By Class	18	49
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Construction
Financing Receivables, By Class	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	949	1,206
Financial Asset, Equal to or Greater than 90 Days Past Due | Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	164	1,458
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	847	334
Financial Asset, Equal to or Greater than 90 Days Past Due | Other Residential
Financing Receivables, By Class	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Business
Financing Receivables, By Class	1,405	1,437
Financial Asset, Equal to or Greater than 90 Days Past Due | Industrial Revenue Bonds
Financing Receivables, By Class	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Loan
Financing Receivables, By Class	194	240
Financial Asset, Equal to or Greater than 90 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	238	86
Financial Asset, Equal to or Greater than 90 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	3,540	6,827
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	8,177	13,127
Financial Asset, Equal to or Greater than 90 Days Past Due | Less: Acquired Loans Net of Discount
Financing Receivables, By Class	3,540	6,827
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable
Financing Receivables, By Class	4,637	6,300
Financing Receivables Past Due | Automobile Loan
Financing Receivables, By Class	2,966	4,808
Financing Receivables Past Due | One-to-Four-Family Residential Construction
Financing Receivables, By Class	0	0
Financing Receivables Past Due | Subdivision Construction
Financing Receivables, By Class	53	0
Financing Receivables Past Due | Land Development
Financing Receivables, By Class	96	62
Financing Receivables Past Due | Commercial Construction
Financing Receivables, By Class	0	0
Financing Receivables Past Due | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	3,587	3,443
Financing Receivables Past Due | Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	335	2,744
Financing Receivables Past Due | Commercial Real Estate
Financing Receivables, By Class	3,511	4,327
Financing Receivables Past Due | Other Residential
Financing Receivables, By Class	4,439	0
Financing Receivables Past Due | Commercial Business
Financing Receivables, By Class	1,479	1,563
Financing Receivables Past Due | Industrial Revenue Bonds
Financing Receivables, By Class	0	3
Financing Receivables Past Due | Consumer Loan
Financing Receivables, By Class	927	1,112
Financing Receivables Past Due | Home Equity Line of Credit
Financing Receivables, By Class	388	315
Financing Receivables Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	7,077	10,438
Financing Receivables Past Due | Loans Receivable, Gross
Financing Receivables, By Class	24,858	28,815
Financing Receivables Past Due | Less: Acquired Loans Net of Discount
Financing Receivables, By Class	7,077	10,438
Financing Receivables Past Due | Loans Receivable
Financing Receivables, By Class	17,781	18,377
Financing Receivables Current | Automobile Loan
Financing Receivables, By Class	226,734	248,720
Financing Receivables Current | One-to-Four-Family Residential Construction
Financing Receivables, By Class	26,935	26,177
Financing Receivables Current | Subdivision Construction
Financing Receivables, By Class	12,299	13,844
Financing Receivables Current | Land Development
Financing Receivables, By Class	46,342	44,430
Financing Receivables Current | Commercial Construction
Financing Receivables, By Class	1,328,853	1,417,166
Financing Receivables Current | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	285,346	273,423
Financing Receivables Current | Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	117,923	119,694
Financing Receivables Current | Commercial Real Estate
Financing Receivables, By Class	1,385,167	1,367,108
Financing Receivables Current | Other Residential
Financing Receivables, By Class	860,551	784,894
Financing Receivables Current | Commercial Business
Financing Receivables, By Class	319,848	320,555
Financing Receivables Current | Industrial Revenue Bonds
Financing Receivables, By Class	13,702	13,937
Financing Receivables Current | Consumer Loan
Financing Receivables, By Class	52,421	56,238
Financing Receivables Current | Home Equity Line of Credit
Financing Receivables, By Class	120,308	121,037
Financing Receivables Current | Acquired Loans Net of Discount
Financing Receivables, By Class	154,048	157,213
Financing Receivables Current | Loans Receivable, Gross
Financing Receivables, By Class	4,950,477	4,964,436
Financing Receivables Current | Less: Acquired Loans Net of Discount
Financing Receivables, By Class	154,048	157,213
Financing Receivables Current | Loans Receivable
Financing Receivables, By Class	4,796,429	4,807,223
Financing Receivables, Total | Automobile Loan
Financing Receivables, By Class	229,700	253,528
Financing Receivables, Total | One-to-Four-Family Residential Construction
Financing Receivables, By Class	26,935	26,177
Financing Receivables, Total | Subdivision Construction
Financing Receivables, By Class	12,352	13,844
Financing Receivables, Total | Land Development
Financing Receivables, By Class	46,438	44,492
Financing Receivables, Total | Commercial Construction
Financing Receivables, By Class	1,328,853	1,417,166
Financing Receivables, Total | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	288,933	276,866
Financing Receivables, Total | Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	118,258	122,438
Financing Receivables, Total | Commercial Real Estate
Financing Receivables, By Class	1,388,678	1,371,435
Financing Receivables, Total | Other Residential
Financing Receivables, By Class	864,990	784,894
Financing Receivables, Total | Commercial Business
Financing Receivables, By Class	321,327	322,118
Financing Receivables, Total | Industrial Revenue Bonds
Financing Receivables, By Class	13,702	13,940
Financing Receivables, Total | Consumer Loan
Financing Receivables, By Class	53,348	57,350
Financing Receivables, Total | Home Equity Line of Credit
Financing Receivables, By Class	120,696	121,352
Financing Receivables, Total | Acquired Loans Net of Discount
Financing Receivables, By Class	161,125	167,651
Financing Receivables, Total | Loans Receivable, Gross
Financing Receivables, By Class	4,975,335	4,993,251
Financing Receivables, Total | Less: Acquired Loans Net of Discount
Financing Receivables, By Class	161,125	167,651
Financing Receivables, Total | Loans Receivable
Financing Receivables, By Class	4,814,210	4,825,600
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Automobile Loan
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | One-to-Four-Family Residential Construction
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Subdivision Construction
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Land Development
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Construction
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Owner Occupied One-to-Four-Family Residential
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Non-Owner Occupied One To Four Family Residential
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Real Estate
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Other Residential
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Business
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Industrial Revenue Bonds
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Consumer Loan
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Home Equity Line of Credit
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Acquired Loans Net of Discount
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Loans Receivable, Gross
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Less: Acquired Loans Net of Discount
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Loans Receivable
Financing Receivables, By Class	$ 0	$ 0