SHARE-BASED PAYMENTS - Stock-based Compensation (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock-based compensation expense | $ 134,113 | $ 5,779 | $ 4,155,641 | $ 105,643 |
| Unrecognized compensation cost related to non-vested stock option | 1,164,223 | $ 1,164,223 | ||
| Share-based arrangement, non-vested weighted average period | 2 years 5 months 23 days | |||
| Sales and Marketing Expense | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock-based compensation expense | $ 537,550 | $ 537,550 | ||