NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Schedule of Loans Classified by Aging Analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financial Asset, 30 to 59 Days Past Due | Loans Receivable Gross
Financing Receivables, By Class	$ 1,856	$ 21,527
Financial Asset, 30 to 59 Days Past Due | Loans Receivable
Financing Receivables, By Class	1,589	19,350
Financial Asset, 30 to 59 Days Past Due | Commercial Loan
Financing Receivables, By Class	0	15,085
Financial Asset, 30 to 59 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	0	549
Financial Asset, 30 to 59 Days Past Due | Industrial revenue bonds
Financing Receivables, By Class	0	0
Financial Asset, 30 to 59 Days Past Due | Automobile Loan
Financing Receivables, By Class	305	1,101
Financial Asset, 30 to 59 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	669	296
Financial Asset, 30 to 59 Days Past Due | Land Improvements
Financing Receivables, By Class	0	0
Financial Asset, 30 to 59 Days Past Due | One- to four-family residential construction
Financing Receivables, By Class	79	0
Financial Asset, 30 to 59 Days Past Due | Subdivision 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	227	1,453
Financial Asset, 30 to 59 Days Past Due | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	224	152
Financial Asset, 30 to 59 Days Past Due | Other residential
Financing Receivables, By Class	0	376
Financial Asset, 30 to 59 Days Past Due | Commercial Borrower
Financing Receivables, By Class	0	60
Financial Asset, 30 to 59 Days Past Due | Consumer Borrower
Financing Receivables, By Class	85	278
Financial Asset, 30 to 59 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	267	2,177
Financial Asset, 30 to 59 Days Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	267	2,177
Financial Asset, 60 to 89 Days Past Due | Loans Receivable Gross
Financing Receivables, By Class	560	2,978
Financial Asset, 60 to 89 Days Past Due | Loans Receivable
Financing Receivables, By Class	371	2,269
Financial Asset, 60 to 89 Days Past Due | Commercial Loan
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	0	119
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 | Automobile Loan
Financing Receivables, By Class	40	259
Financial Asset, 60 to 89 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	103	0
Financial Asset, 60 to 89 Days Past Due | Land Improvements
Financing Receivables, By Class	24	27
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 | Owner occupied one- to four-family residential
Financing Receivables, By Class	175	1,631
Financial Asset, 60 to 89 Days Past Due | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	28	0
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 Borrower
Financing Receivables, By Class	0	0
Financial Asset, 60 to 89 Days Past Due | Consumer Borrower
Financing Receivables, By Class	1	233
Financial Asset, 60 to 89 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	189	709
Financial Asset, 60 to 89 Days Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	189	709
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable Gross
Financing Receivables, By Class	10,438	10,710
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable
Financing Receivables, By Class	5,289	4,519
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Loan
Financing Receivables, By Class	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate
Financing Receivables, By Class	727	632
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 | Automobile Loan
Financing Receivables, By Class	361	558
Financial Asset, Equal to or Greater than 90 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	517	517
Financial Asset, Equal to or Greater than 90 Days Past Due | Land Improvements
Financing Receivables, By Class	0	0
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 | Owner occupied one- to four-family residential
Financing Receivables, By Class	2,109	1,198
Financial Asset, Equal to or Greater than 90 Days Past Due | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	279	181
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 Borrower
Financing Receivables, By Class	1,182	1,235
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Borrower
Financing Receivables, By Class	114	198
Financial Asset, Equal to or Greater than 90 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	5,149	6,191
Financial Asset, Equal to or Greater than 90 Days Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	5,149	6,191
Financing Receivables Past Due | Loans Receivable Gross
Financing Receivables, By Class	12,854	35,215
Financing Receivables Past Due | Loans Receivable
Financing Receivables, By Class	7,249	26,138
Financing Receivables Past Due | Commercial Loan
Financing Receivables, By Class	0	15,085
Financing Receivables Past Due | Commercial Real Estate
Financing Receivables, By Class	727	1,300
Financing Receivables Past Due | Industrial revenue bonds
Financing Receivables, By Class	0	0
Financing Receivables Past Due | Automobile Loan
Financing Receivables, By Class	706	1,918
Financing Receivables Past Due | Home Equity Line of Credit
Financing Receivables, By Class	1,289	813
Financing Receivables Past Due | Land Improvements
Financing Receivables, By Class	24	27
Financing Receivables Past Due | One- to four-family residential construction
Financing Receivables, By Class	79	0
Financing Receivables Past Due | Subdivision construction
Financing Receivables, By Class	0	0
Financing Receivables Past Due | Owner occupied one- to four-family residential
Financing Receivables, By Class	2,511	4,282
Financing Receivables Past Due | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	531	333
Financing Receivables Past Due | Other residential
Financing Receivables, By Class	0	376
Financing Receivables Past Due | Commercial Borrower
Financing Receivables, By Class	1,182	1,295
Financing Receivables Past Due | Consumer Borrower
Financing Receivables, By Class	200	709
Financing Receivables Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	5,605	9,077
Financing Receivables Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	5,605	9,077
Financing Receivables Current | Loans Receivable Gross
Financing Receivables, By Class	5,263,652	5,016,831
Financing Receivables Current | Loans Receivable
Financing Receivables, By Class	5,158,593	4,898,702
Financing Receivables Current | Commercial Loan
Financing Receivables, By Class	1,211,294	1,307,776
Financing Receivables Current | Commercial Real Estate
Financing Receivables, By Class	1,531,547	1,492,872
Financing Receivables Current | Industrial revenue bonds
Financing Receivables, By Class	14,222	13,189
Financing Receivables Current | Automobile Loan
Financing Receivables, By Class	113,221	149,936
Financing Receivables Current | Home Equity Line of Credit
Financing Receivables, By Class	115,004	118,175
Financing Receivables Current | Land Improvements
Financing Receivables, By Class	38,622	40,404
Financing Receivables Current | One- to four-family residential construction
Financing Receivables, By Class	34,297	33,963
Financing Receivables Current | Subdivision construction
Financing Receivables, By Class	13,637	16,088
Financing Receivables Current | Owner occupied one- to four-family residential
Financing Receivables, By Class	460,982	382,734
Financing Receivables Current | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	118,366	120,010
Financing Receivables Current | Other residential
Financing Receivables, By Class	1,024,591	865,630
Financing Receivables Current | Commercial Borrower
Financing Receivables, By Class	440,128	311,914
Financing Receivables Current | Consumer Borrower
Financing Receivables, By Class	42,682	46,011
Financing Receivables Current | Acquired Loans Net of Discount
Financing Receivables, By Class	105,059	118,129
Financing Receivables Current | Less Acquired Loans Net of Discount
Financing Receivables, By Class	105,059	118,129
Financing Receivables Total | Loans Receivable Gross
Financing Receivables, By Class	5,276,506	5,052,046
Financing Receivables Total | Loans Receivable
Financing Receivables, By Class	5,165,842	4,924,840
Financing Receivables Total | Commercial Loan
Financing Receivables, By Class	1,211,294	1,322,861
Financing Receivables Total | Commercial Real Estate
Financing Receivables, By Class	1,532,274	1,494,172
Financing Receivables Total | Industrial revenue bonds
Financing Receivables, By Class	14,222	13,189
Financing Receivables Total | Automobile Loan
Financing Receivables, By Class	113,927	151,854
Financing Receivables Total | Home Equity Line of Credit
Financing Receivables, By Class	116,293	118,988
Financing Receivables Total | Land Improvements
Financing Receivables, By Class	38,646	40,431
Financing Receivables Total | One- to four-family residential construction
Financing Receivables, By Class	34,376	33,963
Financing Receivables Total | Subdivision construction
Financing Receivables, By Class	13,637	16,088
Financing Receivables Total | Owner occupied one- to four-family residential
Financing Receivables, By Class	463,493	387,016
Financing Receivables Total | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	118,897	120,343
Financing Receivables Total | Other residential
Financing Receivables, By Class	1,024,591	866,006
Financing Receivables Total | Commercial Borrower
Financing Receivables, By Class	441,310	313,209
Financing Receivables Total | Consumer Borrower
Financing Receivables, By Class	42,882	46,720
Financing Receivables Total | Acquired Loans Net of Discount
Financing Receivables, By Class	110,664	127,206
Financing Receivables Total | Less Acquired Loans Net of Discount
Financing Receivables, By Class	110,664	127,206
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 | Loans Receivable
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Loan
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 | Industrial revenue bonds
Financing Receivables, By Class	0	0
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 | Home Equity Line of Credit
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Land Improvements
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 | 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 | Other residential
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Commercial Borrower
Financing Receivables, By Class	0	0
Financing Receivables Greater Than 90 Days Past Due and Still Accruing | Consumer Borrower
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 | Less Acquired Loans Net of Discount
Financing Receivables, By Class	$ 0	$ 0