Summary of Significant Accounting Policies - Share-based Compensation (Details) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2017 |
Mar. 31, 2016 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Stock-based compensation expense | $ 343 | $ 367 |
| Stock Options | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Non-vested stock options unrecognized compensation expense | $ 3,216 | |
| Non-vested stock options unrecognized compensation expense, weighted-average period of recognition | 2 years 8 months 1 day | |
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- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. 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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- Details
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