| Stock-Based Compensation - Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award (Details) - USD ($) $ in Thousands | 12 Months Ended | |
|---|---|---|
| Dec. 31, 2018 | Dec. 31, 2017 | |
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | ||
| RSUs | $ 301 | $ 65 | 
| Option | 1,433 | 995 | 
| Total stock-based compensation expense | $ 1,734 | $ 1,060 | 
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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://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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- Definition The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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