Stock-based Compensation - Performance-based stock options (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Dec. 31, 2019 |
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| Share-based compensation | |||||
| Stock-based compensation expense | $ 708 | $ 1,494 | $ 3,269 | $ 4,233 | |
| Stock Options | |||||
| Share-based compensation | |||||
| Unrecognized compensation expense related to stock options (in dollars) | $ 3,300 | $ 3,300 | |||
| Stock Options Vesting Based On Performance | |||||
| Share-based compensation | |||||
| Number of options outstanding, non-vested options | 0 | 0 | 41,250 | ||
| Grant date fair value | $ 200 | ||||
| Stock-based compensation expense | $ 200 | ||||
| Unrecognized compensation expense related to stock options (in dollars) | $ 0 | $ 0 | |||
| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Number of non-vested options outstanding. No definition available.
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- Definition Share based compensation arrangement by share based payment award options grant date fair value. No definition available.
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- Details
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- Details
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