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Note 21: Stock Compensation Plans: Schedule of Share-based Compensation, Activity (Details) - Employee Stock Option | 12 Months Ended
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Dec. 31, 2018 $ / shares shares
Granted |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares | 186,750
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares | $ 55.282
Exercised |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares | (81,940)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares | $ 27.597
Forfeited |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares | (14,373)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares | $ 46.081
Options exercisable |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares | 266,742
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares | $ 32.233
Share based compensation stock option weighted average remaining contractual term | 5.15 years
Balance, Beginning of Period |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares | 682,799
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares | $ 38.860
Share based compensation stock option weighted average remaining contractual term | 7.38 years
Balance, End of Period |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares | 773,236
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares | $ 43.886
Share based compensation stock option weighted average remaining contractual term | 7.44 years

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