SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Changes in Fair Value Derivative Liability (Details)
|
6 Months Ended |
|
Jun. 30, 2019
USD ($)
|
|---|
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |
|
| Beginning balance of net derivative asset (liability) |
$ 370,000
|
| Ending balance of net derivative asset (liability) |
1,659,200
|
| The amount of total gain for the period included in earnings attributable to the change in unrealized gains relating to the fair value liabilities still held at the reporting date |
2,951,800
|
| Warrant |
|
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |
|
| Issuance |
3,330,000
|
| Change in fair value |
(2,669,800)
|
| Derivative Liability |
|
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |
|
| Issuance |
1,281,000
|
| Extinguishment of derivative liability |
(370,000)
|
| Change in fair value |
$ (282,000)
|