Stock-Based Compensation Plan (Narrative) (Details) $ in Thousands |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2018
USD ($)
item
shares
|
Mar. 31, 2017
USD ($)
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Maximum number of shares of common stock that may be granted through awards to any employee in any calendar year | 500 | |
| Allocated Share-based Compensation Expense | $ | $ 499 | $ 33 |
| Unrecognized compensation cost related to unvested stock options | $ | $ 5,251 | |
| Unvested restricted stock awards | 850 | |
| Unvested stock options | 1,857 | |
| Unrecognized compensation cost related to unvested restricted stock awards | $ | $ 1,110 | |
| Stock Options | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Number of stock options issued under a plan | 1,500 | |
| Shares issued | 1,500 | |
| Number of Vesting Tranches | item | 5 | |
| Stock options granted fair value | $ | $ 4,480 | |
| X | ||||||||||
- Definition Number of Vesting Tranches No definition available.
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Unrecognized cost of unvested options awarded to employees as compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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- Definition The highest quantity of shares an employee can purchase under the plan per period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition Number of share instruments newly issued under a share-based compensation plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of non-vested options outstanding. No definition available.
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| X | ||||||||||
- Details
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