DEBT - Unsecured Convertible Promissory Note (Details) - USD ($) |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 08, 2019 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Dec. 31, 2020 |
|
| Short-term Debt [Line Items] | ||||
| Amortization of debt discount | $ 43,983 | $ 481,024 | ||
| Repayments of debt | 58,199 | 1,469,804 | ||
| Unsecured Convertible Promissory Note | ||||
| Short-term Debt [Line Items] | ||||
| Principal amount | $ 5,500,000 | $ 8,400,000 | ||
| Conversion price (in dollars per share) | $ 3.25 | |||
| Proceeds from notes payable | $ 5,000,000.0 | |||
| Unamortized discount | (500,000) | |||
| Debt discount and derivative liability at the issuance date | $ 1,300,000 | |||
| Amortization of debt discount | $ 400,000 | |||
| Debt interest rate | 10.00% | |||
| Repayments of debt | $ 1,500,000 | |||
| Debt Instrument, Redemption, Period One | Unsecured Convertible Promissory Note | ||||
| Short-term Debt [Line Items] | ||||
| Debt instrument, redemption period | 15 months | |||