SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended |
9 Months Ended |
|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Dec. 31, 2017 |
| Omnibus Incentive Plan 2012 |
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
| Number of shares authorized for issuance |
3,150,000
|
|
3,150,000
|
|
|
| Common stock, options outstanding |
1,204,526
|
|
1,204,526
|
|
1,683
|
| Options available for future grants |
1,945,474
|
|
1,945,474
|
|
|
| Weighted-average grant date fair value of options granted |
$ 4.06
|
|
$ 4.06
|
|
|
| Weighted-average exercise price, options granted |
|
$ 0
|
$ 6.12
|
$ 0
|
|
| Unrecognized compensation cost |
$ 3.5
|
|
$ 3.5
|
|
|
| Weighted-average period for recognizing cost |
|
|
3 years 4 months 24 days
|
|
|
| Private Innovate 2015 Stock Incentive Plan |
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
| Common stock, options outstanding |
6,428,577
|
|
6,428,577
|
|
6,843,296
|
| Options available for future grants |
1,108,744
|
|
1,108,744
|
|
|
| Weighted-average grant date fair value of options granted |
|
$ 1.46
|
|
1.59
|
|
| Weighted-average exercise price, options granted |
$ 0
|
|
|
$ 0
|
|
| Unrecognized compensation cost |
$ 2.8
|
|
$ 2.8
|
|
|
| Weighted-average period for recognizing cost |
|
|
2 years 6 months
|
|
|