NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Schedule of Loans Classified by Aging Analysis (Details) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Financing Receivables Greater Than 90 Days Past Due and Still Accruing
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
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	100	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	384	1,101
Financial Asset, 30 to 59 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	109	296
Financial Asset, 30 to 59 Days Past Due | Land Improvements
Financing Receivables, By Class	236	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	336	1,453
Financial Asset, 30 to 59 Days Past Due | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	0	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	177	278
Financial Asset, 30 to 59 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	331	2,177
Financial Asset, 30 to 59 Days Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	331	2,177
Financial Asset, 30 to 59 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	1,752	21,527
Financial Asset, 30 to 59 Days Past Due | Loans Receivable
Financing Receivables, By Class	1,421	19,350
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	45	259
Financial Asset, 60 to 89 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	129	0
Financial Asset, 60 to 89 Days Past Due | Land Improvements
Financing Receivables, By Class	39	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	195	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	6	233
Financial Asset, 60 to 89 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	348	709
Financial Asset, 60 to 89 Days Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	348	709
Financial Asset, 60 to 89 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	762	2,978
Financial Asset, 60 to 89 Days Past Due | Loans Receivable
Financing Receivables, By Class	414	2,269
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	701	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	267	558
Financial Asset, Equal to or Greater than 90 Days Past Due | Home Equity Line of Credit
Financing Receivables, By Class	457	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	1,922	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	238	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	140	1,235
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Borrower
Financing Receivables, By Class	112	198
Financial Asset, Equal to or Greater than 90 Days Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	3,966	6,191
Financial Asset, Equal to or Greater than 90 Days Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	3,966	6,191
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable, Gross
Financing Receivables, By Class	7,803	10,710
Financial Asset, Equal to or Greater than 90 Days Past Due | Loans Receivable
Financing Receivables, By Class	3,837	4,519
Financing Receivables Past Due | Commercial Loan
Financing Receivables, By Class	0	15,085
Financing Receivables Past Due | Commercial Real Estate
Financing Receivables, By Class	801	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	696	1,918
Financing Receivables Past Due | Home Equity Line of Credit
Financing Receivables, By Class	695	813
Financing Receivables Past Due | Land Improvements
Financing Receivables, By Class	275	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	2,453	4,282
Financing Receivables Past Due | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	238	333
Financing Receivables Past Due | Other residential
Financing Receivables, By Class	0	376
Financing Receivables Past Due | Commercial Borrower
Financing Receivables, By Class	140	1,295
Financing Receivables Past Due | Consumer Borrower
Financing Receivables, By Class	295	709
Financing Receivables Past Due | Acquired Loans Net of Discount
Financing Receivables, By Class	4,645	9,077
Financing Receivables Past Due | Less Acquired Loans Net of Discount
Financing Receivables, By Class	4,645	9,077
Financing Receivables Past Due | Loans Receivable, Gross
Financing Receivables, By Class	10,317	35,215
Financing Receivables Past Due | Loans Receivable
Financing Receivables, By Class	5,672	26,138
Financing Receivables Current | Commercial Loan
Financing Receivables, By Class	1,206,342	1,307,776
Financing Receivables Current | Commercial Real Estate
Financing Receivables, By Class	1,535,642	1,492,872
Financing Receivables Current | Industrial revenue bonds
Financing Receivables, By Class	14,165	13,189
Financing Receivables Current | Automobile Loan
Financing Receivables, By Class	98,588	149,936
Financing Receivables Current | Home Equity Line of Credit
Financing Receivables, By Class	113,662	118,175
Financing Receivables Current | Land Improvements
Financing Receivables, By Class	39,949	40,404
Financing Receivables Current | One- to four-family residential construction
Financing Receivables, By Class	38,424	33,963
Financing Receivables Current | Subdivision construction
Financing Receivables, By Class	10,466	16,088
Financing Receivables Current | Owner occupied one- to four-family residential
Financing Receivables, By Class	475,660	382,734
Financing Receivables Current | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	117,461	120,010
Financing Receivables Current | Other residential
Financing Receivables, By Class	1,018,359	865,630
Financing Receivables Current | Commercial Borrower
Financing Receivables, By Class	439,059	311,914
Financing Receivables Current | Consumer Borrower
Financing Receivables, By Class	41,038	46,011
Financing Receivables Current | Acquired Loans Net of Discount
Financing Receivables, By Class	101,483	118,129
Financing Receivables Current | Less Acquired Loans Net of Discount
Financing Receivables, By Class	101,483	118,129
Financing Receivables Current | Loans Receivable, Gross
Financing Receivables, By Class	5,250,298	5,016,831
Financing Receivables Current | Loans Receivable
Financing Receivables, By Class	5,148,815	4,898,702
Financing Receivables Total | Commercial Loan
Financing Receivables, By Class	1,206,342	1,322,861
Financing Receivables Total | Commercial Real Estate
Financing Receivables, By Class	1,536,443	1,494,172
Financing Receivables Total | Industrial revenue bonds
Financing Receivables, By Class	14,165	13,189
Financing Receivables Total | Automobile Loan
Financing Receivables, By Class	99,284	151,854
Financing Receivables Total | Home Equity Line of Credit
Financing Receivables, By Class	114,357	118,988
Financing Receivables Total | Land Improvements
Financing Receivables, By Class	40,224	40,431
Financing Receivables Total | One- to four-family residential construction
Financing Receivables, By Class	38,503	33,963
Financing Receivables Total | Subdivision construction
Financing Receivables, By Class	10,466	16,088
Financing Receivables Total | Owner occupied one- to four-family residential
Financing Receivables, By Class	478,113	387,016
Financing Receivables Total | Non-owner occupied one- to four-family residential
Financing Receivables, By Class	117,699	120,343
Financing Receivables Total | Other residential
Financing Receivables, By Class	1,018,359	866,006
Financing Receivables Total | Commercial Borrower
Financing Receivables, By Class	439,199	313,209
Financing Receivables Total | Consumer Borrower
Financing Receivables, By Class	41,333	46,720
Financing Receivables Total | Acquired Loans Net of Discount
Financing Receivables, By Class	106,128	127,206
Financing Receivables Total | Less Acquired Loans Net of Discount
Financing Receivables, By Class	106,128	127,206
Financing Receivables Total | Loans Receivable, Gross
Financing Receivables, By Class	5,260,615	5,052,046
Financing Receivables Total | Loans Receivable
Financing Receivables, By Class	$ 5,154,487	$ 4,924,840