STOCK-BASED COMPENSATION (Equity Based Compensation Schedule) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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| Allocation of stock-based compensation expense | ||||
| Stock compensation expense | $ 1,457 | $ 1,627 | $ 2,811 | $ 2,590 |
| Research and development expenses | ||||
| Allocation of stock-based compensation expense | ||||
| Stock compensation expense | 690 | 816 | 1,323 | 1,347 |
| General and administrative expenses | ||||
| Allocation of stock-based compensation expense | ||||
| Stock compensation expense | $ 767 | $ 811 | $ 1,488 | $ 1,243 |
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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 Amount of cost expensed and capitalized for award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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