NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Schedule of Loans Classified by Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financial Asset, 30 to 59 Days Past Due \| Loans Receivable, Gross
Financing Receivables, By Class	$ 9,426	$ 21,527
Financial Asset, 30 to 59 Days Past Due \| Loans Receivable
Financing Receivables, By Class	6,504	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	360	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	1,722	1,101
Financial Asset, 30 to 59 Days Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	204	296
Financial Asset, 30 to 59 Days Past Due \| Land Improvements
Financing Receivables, By Class	119	0
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	0	0
Financial Asset, 30 to 59 Days Past Due \| Owner occupied one- to four-family residential
Financing Receivables, By Class	2,466	1,453
Financial Asset, 30 to 59 Days Past Due \| Non-owner occupied one- to four-family residential
Financing Receivables, By Class	689	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	60	60
Financial Asset, 30 to 59 Days Past Due \| Consumer Borrower
Financing Receivables, By Class	884	278
Financial Asset, 30 to 59 Days Past Due \| Acquired loans net of discount
Financing Receivables, By Class	2,922	2,177
Financial Asset, 30 to 59 Days Past Due \| Less acquired loans net of discount
Financing Receivables, By Class	2,922	2,177
Financial Asset, 60 to 89 Days Past Due \| Loans Receivable, Gross
Financing Receivables, By Class	722	2,978
Financial Asset, 60 to 89 Days Past Due \| Loans Receivable
Financing Receivables, By Class	509	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	265	259
Financial Asset, 60 to 89 Days Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	85	0
Financial Asset, 60 to 89 Days Past Due \| Land Improvements
Financing Receivables, By Class	0	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	47	1,631
Financial Asset, 60 to 89 Days Past Due \| Non-owner occupied one- to four-family residential
Financing Receivables, By Class	0	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	112	233
Financial Asset, 60 to 89 Days Past Due \| Acquired loans net of discount
Financing Receivables, By Class	213	709
Financial Asset, 60 to 89 Days Past Due \| Less acquired loans net of discount
Financing Receivables, By Class	213	709
Financial Asset, Equal to or Greater than 90 Days Past Due \| Loans Receivable, Gross
Financing Receivables, By Class	11,135	10,710
Financial Asset, Equal to or Greater than 90 Days Past Due \| Loans Receivable
Financing Receivables, By Class	5,279	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	737	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	453	558
Financial Asset, Equal to or Greater than 90 Days Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	464	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	2,031	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	268	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	1,199	1,235
Financial Asset, Equal to or Greater than 90 Days Past Due \| Consumer Borrower
Financing Receivables, By Class	127	198
Financial Asset, Equal to or Greater than 90 Days Past Due \| Acquired loans net of discount
Financing Receivables, By Class	5,856	6,191
Financial Asset, Equal to or Greater than 90 Days Past Due \| Less acquired loans net of discount
Financing Receivables, By Class	5,856	6,191
Financing Receivables Past Due \| Loans Receivable, Gross
Financing Receivables, By Class	21,283	35,215
Financing Receivables Past Due \| Loans Receivable
Financing Receivables, By Class	12,292	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	1,097	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	2,440	1,918
Financing Receivables Past Due \| Home Equity Line of Credit
Financing Receivables, By Class	753	813
Financing Receivables Past Due \| Land Improvements
Financing Receivables, By Class	119	27
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	0	0
Financing Receivables Past Due \| Owner occupied one- to four-family residential
Financing Receivables, By Class	4,544	4,282
Financing Receivables Past Due \| Non-owner occupied one- to four-family residential
Financing Receivables, By Class	957	333
Financing Receivables Past Due \| Other residential
Financing Receivables, By Class	0	376
Financing Receivables Past Due \| Commercial Borrower
Financing Receivables, By Class	1,259	1,295
Financing Receivables Past Due \| Consumer Borrower
Financing Receivables, By Class	1,123	709
Financing Receivables Past Due \| Acquired loans net of discount
Financing Receivables, By Class	8,991	9,077
Financing Receivables Past Due \| Less acquired loans net of discount
Financing Receivables, By Class	8,991	9,077
Financing Receivables Current \| Loans Receivable, Gross
Financing Receivables, By Class	5,075,256	5,016,831
Financing Receivables Current \| Loans Receivable
Financing Receivables, By Class	4,967,038	4,898,702
Financing Receivables Current \| Commercial Loan
Financing Receivables, By Class	1,220,037	1,307,776
Financing Receivables Current \| Commercial Real Estate
Financing Receivables, By Class	1,526,316	1,492,872
Financing Receivables Current \| Industrial revenue bonds
Financing Receivables, By Class	14,324	13,189
Financing Receivables Current \| Automobile Loan
Financing Receivables, By Class	129,143	149,936
Financing Receivables Current \| Home Equity Line of Credit
Financing Receivables, By Class	120,891	118,175
Financing Receivables Current \| Land Improvements
Financing Receivables, By Class	38,388	40,404
Financing Receivables Current \| One- to four-family residential construction
Financing Receivables, By Class	33,410	33,963
Financing Receivables Current \| Subdivision construction
Financing Receivables, By Class	14,604	16,088
Financing Receivables Current \| Owner occupied one- to four-family residential
Financing Receivables, By Class	420,234	382,734
Financing Receivables Current \| Non-owner occupied one- to four-family residential
Financing Receivables, By Class	121,052	120,010
Financing Receivables Current \| Other residential
Financing Receivables, By Class	964,353	865,630
Financing Receivables Current \| Commercial Borrower
Financing Receivables, By Class	320,574	311,914
Financing Receivables Current \| Consumer Borrower
Financing Receivables, By Class	43,712	46,011
Financing Receivables Current \| Acquired loans net of discount
Financing Receivables, By Class	108,218	118,129
Financing Receivables Current \| Less acquired loans net of discount
Financing Receivables, By Class	108,218	118,129
Financing Receivables Total \| Loans Receivable, Gross
Financing Receivables, By Class	5,096,539	5,052,046
Financing Receivables Total \| Loans Receivable
Financing Receivables, By Class	4,979,330	4,924,840
Financing Receivables Total \| Commercial Loan
Financing Receivables, By Class	1,220,037	1,322,861
Financing Receivables Total \| Commercial Real Estate
Financing Receivables, By Class	1,527,413	1,494,172
Financing Receivables Total \| Industrial revenue bonds
Financing Receivables, By Class	14,324	13,189
Financing Receivables Total \| Automobile Loan
Financing Receivables, By Class	131,583	151,854
Financing Receivables Total \| Home Equity Line of Credit
Financing Receivables, By Class	121,644	118,988
Financing Receivables Total \| Land Improvements
Financing Receivables, By Class	38,507	40,431
Financing Receivables Total \| One- to four-family residential construction
Financing Receivables, By Class	33,410	33,963
Financing Receivables Total \| Subdivision construction
Financing Receivables, By Class	14,604	16,088
Financing Receivables Total \| Owner occupied one- to four-family residential
Financing Receivables, By Class	424,778	387,016
Financing Receivables Total \| Non-owner occupied one- to four-family residential
Financing Receivables, By Class	122,009	120,343
Financing Receivables Total \| Other residential
Financing Receivables, By Class	964,353	866,006
Financing Receivables Total \| Commercial Borrower
Financing Receivables, By Class	321,833	313,209
Financing Receivables Total \| Consumer Borrower
Financing Receivables, By Class	44,835	46,720
Financing Receivables Total \| Acquired loans net of discount
Financing Receivables, By Class	117,209	127,206
Financing Receivables Total \| Less acquired loans net of discount
Financing Receivables, By Class	117,209	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

NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Schedule of Loans Classified by Aging Analysis (Details) - USD ($)
$ in Thousands

Mar. 31, 2020

Dec. 31, 2019

Financial Asset, 30 to 59 Days Past Due | Loans Receivable, Gross

Financing Receivables, By Class

$ 9,426

$ 21,527

Financial Asset, 30 to 59 Days Past Due | Loans Receivable

Financing Receivables, By Class

6,504

19,350

Financial Asset, 30 to 59 Days Past Due | Commercial Loan