NOTE 4: EARNINGS PER SHARE: Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Details
Weighted Average Number of Shares Outstanding, Basic	14,221	14,159
Net Income (Loss) Available to Common Stockholders, Basic	$ 14,868	$ 17,612
Earnings Per Share, Basic	$ 1.05	$ 1.24
Weighted Average Number of Shares Outstanding, Diluted	14,221	14,159
Net effect of dilutive stock options - based on the treasurystock method using average market price	78	108
Weighted Average Number Diluted Shares Outstanding Adjustment	14,299	14,267
Net Income (Loss) Available to Common Stockholders, Diluted	$ 14,868	$ 17,612
Earnings Per Share, Diluted	$ 1.04	$ 1.23