The conversion rate of RSU equity based awards to Common Stock.

No definition available.

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- Definition

Intrinsic value of equity-based compensation awards converted. Excludes stock and unit options.

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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- Definition

Amount of tax benefit from exercise of option under share-based payment arrangement.

+ References

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- Definition

Amount of cash inflow from exercise of option under share-based payment arrangement.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

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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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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-Publisher FASB
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

+ Details

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Stock-based Compensation (Narrative) (Details)	9 Months Ended		12 Months Ended
Stock-based Compensation (Narrative) (Details)	Sep. 30, 2019 USD ($) shares	Sep. 30, 2018 USD ($) shares	Dec. 31, 2018	Dec. 31, 2017	Apr. 22, 2014 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense for share-based payments	$ 2,064,000	$ 1,526,000
Income tax benefits	618,000	460,000
Intrinsic value	262,000	734,000
Unrecognized compensation cost	$ 1,244,000
Weighted average period expected to be recognized	1 year 3 months 18 days
Proceeds from exercise of stock options	$ 265,000	153,000
Tax benefit from stock option exercised	$ 78,000	$ 167,000
Board Of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued for services \| shares	4,003	1,834
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of RSUs converted	$ 2,107,000	$ 3,011,000
Unrecognized compensation cost	$ 1,243,000
Weighted average period expected to be recognized	1 year 3 months 18 days
Performance-Based RSUs [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion rate of RSUs to common stock	1.50		1.50	1.25
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 1,000
Weighted average period expected to be recognized	8 months 12 days
Cash used to settle stock options	$ 0	$ 0
Equity Incentive Plan 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized \| shares	2,250,000
Number of shares available for issuance \| shares	1,744,237
Equity Incentive Plan 2014 [Member] \| RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance \| shares	293,633
Equity Incentive Plan 2014 [Member] \| RSUs [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized \| shares	787,500
Compensation Plan 2006 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized \| shares					0
Compensation Plan 2006 [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Award expiration period	10 years