NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Financing Receivable, Troubled Debt Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Consumer Borrower
Troubled Debt Restructuring Loans Interest Only	$ 0	$ 0	$ 0	$ 0
Troubled Debt Restructuring Loans Modified Term	16	52	16	79
Troubled Debt Restructuring Loans Modified Combination	28	0	76	0
Troubled Debt Restructurings Total New Modifications	44	$ 52	92	$ 79
Newly Restructured Modified Loans
Troubled Debt Restructuring Loans Interest Only	0		0
Troubled Debt Restructuring Loans Modified Term	16		16
Troubled Debt Restructuring Loans Modified Combination	28		206
Troubled Debt Restructurings Total New Modifications	$ 44		222
One- to four-family residential construction
Troubled Debt Restructuring Loans Interest Only			0
Troubled Debt Restructuring Loans Modified Term			0
Troubled Debt Restructuring Loans Modified Combination			130
Troubled Debt Restructurings Total New Modifications			$ 130