STOCK-BASED COMPENSATION (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Stock-based compensation expense related to stock-based awards | |||
| Total stock-based compensation expense | $ 9,115 | $ 7,704 | $ 5,987 |
| Incremental stock-based compensation expense | 1,400 | ||
| Selling, general and administrative | |||
| Stock-based compensation expense related to stock-based awards | |||
| Total stock-based compensation expense | 6,453 | 5,383 | 4,490 |
| Research and development | |||
| Stock-based compensation expense related to stock-based awards | |||
| Total stock-based compensation expense | $ 2,662 | $ 2,321 | $ 1,497 |
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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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- 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 An excess of the fair value of the modified award over the fair value of the award immediately before the modification. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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