Note 20: Stock Compensation Plans: Schedule of Share-based Compensation, Stock Options, Activity (Details) - $ / shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Granted from 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		(1,000)	(157,800)
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable		1,000	157,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 52.500	$ 52.118
Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	0	0	0
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable	(125,894)	(81,940)	(119,692)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 33.031	$ 27.597	$ 27.352
Forfeited from terminated plan(s)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	0		0
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable	(17,424)		(675)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 44.163		$ 24.690
Forfeited from current plan(s)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	8,450	600	15,837
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable	(8,450)	(600)	(15,837)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 55.000	$ 55.000	$ 41.916
Forfeited from 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		13,773
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable		(13,773)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 45.692
Termination of 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		(90,285)
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable		0
Available to grant from 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		800,000
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable		0
Granted from 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	(186,400)	(185,750)
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable	186,400	185,750
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 60.086	$ 55.297
Share-based Payment Arrangement, Option \| Balance, Beginning of Period
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant			219,475
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable			661,203
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price			$ 33.672
Share-based Payment Arrangement, Option \| Balance, End of Period
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	436,900	614,850	77,512
Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable	807,868	773,236	682,799
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 49.139	$ 43.886	$ 38.860

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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