Compensation and Employee Benefit Plans [Text Block]: Schedule of Share-based Compensation, Stock Options, Activity (Details) - Employee Stock Option	12 Months Ended
Dec. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance \| shares	692,380
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Beginning Balance \| $ / shares	$ 16.62
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross \| shares	28,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price \| $ / shares	$ 33.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period \| shares	152,996
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price \| $ / shares	$ 9.42
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance \| shares	567,384
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance \| $ / shares	$ 19.40

Gross number of share options (or share units) granted during the period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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- Definition

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

+ References

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

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Number of share options (or share units) exercised during the current period.

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