Compensation and Other Benefit Plans - Performance-based stock options (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Share-based compensation | ||
| Stock-based compensation expense | $ 4,948 | $ 3,902 |
| Unrecognized compensation expense related to stock options (in dollars) | $ 3,500 | |
| Number of shares, Granted | 438,814 | |
| Stock Options | ||
| Share-based compensation | ||
| Threshold years required for retirement age | 70 years | |
| Stock Options | Employees | ||
| Share-based compensation | ||
| Vesting period | 3 years | |
| Stock Options | Directors | ||
| Share-based compensation | ||
| Vesting period | 1 year | |
| Stock Options Vesting Based On Performance | ||
| Share-based compensation | ||
| Number of options outstanding, non-vested options | 41,250 | |
| Grant date fair value | $ 200 | |
| Stock-based compensation expense | $ 200 | |
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- 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 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. 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 Gross number of share options (or share units) granted during the period. 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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- Definition Threshold years required for retirement age (defined as employees that are a minimum of 55 years of age and the sum of their age plus years of full-time employment with the Company). No definition available.
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