NET LOSS PER SHARE - Antidilutive Securities (Details) - shares |
6 Months Ended | |
|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total shares | 467,009 | 403,011 |
| Restricted stock | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total shares | 437,347 | 307,347 |
| Stock options | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total shares | 29,258 | 90,685 |
| Warrants | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Total shares | 404 | 4,979 |