STOCKHOLDERS' EQUITY - Warrants (Details) |
6 Months Ended |
|---|---|
|
Jun. 30, 2020
$ / shares
shares
| |
| Class of Warrant or Right Outstanding [Roll Forward] | |
| Outstanding at January 1, 2020 | 404 |
| Outstanding at June 30, 2020 | 404 |
| Beginning weighted-average exercise price (in dollars per share) | $ / shares | $ 30.97 |
| Ending weighted-average exercise price (in dollars per share) | $ / shares | $ 30.97 |
| Term of warrants | 10 years |
| Number of warrants exercised (in shares) | 0 |