NOTE 7: ACQUIRED LOANS, LOSS SHARING AGREEMENTS AND FDIC INDEMNIFICATION ASSETS: Schedule of Impact of Adjustments of Acquired Loans on Financial Results (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) $ / shares	Sep. 30, 2019 USD ($) $ / shares	Sep. 30, 2020 USD ($) $ / shares	Sep. 30, 2019 USD ($) $ / shares
Details
Impact of acquired loan pools on net interest income	$ 1,229	$ 2,251	$ 4,632	$ 5,162
Impact of acquired loan pools on net interest margin (in basis points)	9	20	12	15
Net impact of acquired loan pools to pre-tax income	$ 1,229	$ 2,251	$ 4,632	$ 5,162
Net impact of acquired loan pools to net of taxes	$ 949	$ 1,738	$ 3,576	$ 3,985
Impact of acquired loan pools to diluted earnings per common share | $ / shares	$ 0.07	$ 0.12	$ 0.25	$ 0.28