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SHARE-BASED COMPENSATION (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Apr. 20, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares authorized for issuance under the equity incentive plan (in shares) | 164,937 | 443,431 | 1,766,811 | 2,000,000
Share based compensation expense | $ 7.1 | $ 1.5 |  |
2015 Equity Incentive Award Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares authorized for issuance under the equity incentive plan (in shares) | 2,000,000 |  |  |
2015 Equity Incentive Award Plan [Member] | Lone Star Value Investors, LP [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares issued in the event of cashless warrants exercised (in shares) | 1,205,837 |  |  |
Share based compensation expense | $ 2.2 |  |  |
2015 Equity Incentive Award Plan [Member] | Restricted Stock Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares cancelled (in shares) | 174,680 |  |  |
Accelerated cost | $ 0.8 |  |  |
Number of shares vested (in shares) | 333,333 |  |  |
Shares vesting charge | $ 1.1 |  |  |
2015 Equity Incentive Award Plan [Member] | Employees [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Bonus shares pursuant to the plan (in shares) | 170,000 |  |  |
2015 Equity Incentive Award Plan [Member] | Employees [Member] | Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of options granted for purchase (in shares) | 285,000 |  |  |
Bonus shares pursuant to the plan (in shares) | 28,600 |  |  |
2015 Equity Incentive Award Plan [Member] | Employees [Member] | Restricted Stock Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of options granted for purchase (in shares) | 98,669 |  |  |

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