SHARE-BASED COMPENSATION - Stock Option Activity (Details) - USD ($)
|
3 Months Ended |
9 Months Ended |
12 Months Ended |
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Dec. 31, 2017 |
| Private Innovate 2015 Stock Incentive Plan |
|
|
|
|
|
| Number of Shares |
|
|
|
|
|
| Number of shares, beginning balance |
|
|
6,843,296
|
|
|
| Number of shares, options granted |
|
|
0
|
|
|
| Number of shares, options forfeited |
|
|
(414,719)
|
|
|
| Number of shares, options exercised |
|
|
0
|
|
|
| Number of shares, ending balance |
6,428,577
|
|
6,428,577
|
|
6,843,296
|
| Number of shares, exercisable |
5,534,191
|
|
5,534,191
|
|
|
| Number of shares, vested and expected to vest |
6,378,011
|
|
6,378,011
|
|
|
| Weighted-Average Exercise Price |
|
|
|
|
|
| Weighted-average exercise price, beginning balance |
|
|
$ 1.56
|
|
|
| Weighted-average exercise price, options granted |
$ 0
|
|
|
$ 0
|
|
| Weighted-average exercise price, options forfeited |
|
|
2.08
|
|
|
| Weighted-average exercise price, ending balance |
1.53
|
|
1.53
|
|
$ 1.56
|
| Weighted-average exercise price, exercisable |
1.44
|
|
1.44
|
|
|
| Weighted-average exercise price, vested and expected to vest |
$ 1.52
|
|
$ 1.52
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |
|
|
|
|
|
| Aggregate intrinsic value, beginning balance |
|
|
$ 6,617,433
|
|
|
| Aggregate intrinsic value, ending balance |
$ 34,080,300
|
|
34,080,300
|
|
$ 6,617,433
|
| Aggregate intrinsic value, exercisable |
29,819,823
|
|
29,819,823
|
|
|
| Aggregate intrinsic value, vested and expected to vest |
$ 33,841,611
|
|
$ 33,841,611
|
|
|
| Weighted-average remaining contractual life, outstanding (in years) |
|
|
7 years 11 months 27 days
|
|
9 years 15 days
|
| Weighted-average remaining contractual life, exercisable (in years) |
|
|
7 years 10 months 24 days
|
|
|
| Weighted-average remaining contractual life, vested and expected to vest (in years) |
|
|
7 years 11 months 23 days
|
|
|
| Omnibus Incentive Plan 2012 |
|
|
|
|
|
| Number of Shares |
|
|
|
|
|
| Number of shares, beginning balance |
|
|
1,683
|
|
|
| Number of shares, options granted |
|
|
1,202,843
|
|
|
| Number of shares, options forfeited |
|
|
0
|
|
|
| Number of shares, options exercised |
|
|
0
|
|
|
| Number of shares, ending balance |
1,204,526
|
|
1,204,526
|
|
1,683
|
| Number of shares, exercisable |
270,676
|
|
270,676
|
|
|
| Number of shares, vested and expected to vest |
1,126,051
|
|
1,126,051
|
|
|
| Weighted-Average Exercise Price |
|
|
|
|
|
| Weighted-average exercise price, beginning balance |
|
|
$ 45.00
|
|
|
| Weighted-average exercise price, options granted |
|
$ 0
|
6.12
|
$ 0
|
|
| Weighted-average exercise price, ending balance |
$ 6.17
|
|
6.17
|
|
$ 45.00
|
| Weighted-average exercise price, exercisable |
6.43
|
|
6.43
|
|
|
| Weighted-average exercise price, vested and expected to vest |
$ 6.18
|
|
$ 6.18
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |
|
|
|
|
|
| Aggregate intrinsic value, beginning balance |
|
|
$ 0
|
|
|
| Aggregate intrinsic value, ending balance |
$ 869,003
|
|
869,003
|
|
$ 0
|
| Aggregate intrinsic value, exercisable |
175,359
|
|
175,359
|
|
|
| Aggregate intrinsic value, vested and expected to vest |
$ 809,494
|
|
$ 809,494
|
|
|
| Weighted-average remaining contractual life, outstanding (in years) |
|
|
9 years 9 months 26 days
|
|
9 years 15 days
|
| Weighted-average remaining contractual life, granted (in years) |
|
|
9 years 9 months 26 days
|
|
|
| Weighted-average remaining contractual life, exercisable (in years) |
|
|
9 years 4 months 24 days
|
|
|
| Weighted-average remaining contractual life, vested and expected to vest (in years) |
|
|
9 years 9 months 26 days
|
|
|