STOCK-BASED COMPENSATION (Details Textual) - $ / shares |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
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| Share-based Compensation, Allocation and Classification in Financial Statements [Abstract] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 5.29 | $ 10.83 |
| Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Exercise Price | $ 6.69 | $ 13.72 |
| Stock Options [Member] | ||
| Share-based Compensation, Allocation and Classification in Financial Statements [Abstract] | ||
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 201,000 | 645,000 |
| X | ||||||||||
- Definition Agreed-upon share price for the exchange of the underlying asset relating to the share-based payment award. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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