The percent of equity-based awards, excluding stock options, that vested during the reporting period.

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Share-based Compensation Arrangement by Share-based Payment Award, Elected Amount of Retainer Fee Deferred

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Maximum Amount to be Paid to Individual During Any Calendar Year

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No definition available.

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Share-based Compensation Arrangement by Share-based Payment Award, Number Anticipated to be Eligible for Awards

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants after Expiration Date

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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No definition available.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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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

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

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

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- Definition

For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

+ References

No definition available.

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- Definition

Value of stock issued as a result of the exercise of stock options.

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Share-Based Compensation (Narrative) (Details)		12 Months Ended
Share-Based Compensation (Narrative) (Details)	Oct. 27, 2014 shares	Dec. 31, 2017 USD ($) employee non-employee $ / shares shares	Dec. 31, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum amount to be paid to individual pursuant to cash bonus award \| $		$ 2,000,000
Shares granted \| shares		0
Per share exercise price \| $ / shares		$ 7.49	$ 7.49
Expiration period (in years)	10 years
Allocated SBC expense \| $		$ (2,600,000)	$ (1,300,000)	$ (500,000)
Payments Related to Tax Withholding for Share-based Compensation \| $		$ (586,000)	0	0
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period		5 years
Stock Issued During Period, Value, Stock Options Exercised \| $		$ 0	$ 0	$ 0
2014 Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards granted after expiration date \| shares		0
Number of shares authorized and reserved for issuance \| shares	2,350,956
Number of shares available for grant \| shares		1,956,979
Shares granted \| shares		0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share-based compensation expense \| $		$ 200,000
Unamortized share-based compensation expense, weighted average period of recognition		4 months 22 days
Equity Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share-based compensation expense \| $		$ 500,000
Unamortized share-based compensation expense, weighted average period of recognition		1 year 9 months 25 days
Executive Officers \| 2014 Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number eligible for awards \| employee		4
Non-employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of amount of retainer fee deferred (up to)		100.00%
Non-employee Directors \| 2014 Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number eligible for awards \| non-employee		6
Other Employees \| 2014 Equity Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number eligible for awards \| employee		260
Officer [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards vested in period		100.00%
Shares Paid for Tax Withholding for Share Based Compensation \| shares		(63,057)
Payments Related to Tax Withholding for Share-based Compensation \| $		$ (600,000)
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Paid for Tax Withholding for Share Based Compensation \| shares		63,057
Common Stock \| Chief Executive Officer \| Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years