SHARE-BASED PAYMENTS - Stock-based Compensation - Stock options granted (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
|
| SHARE-BASED PAYMENTS | ||
| Stock-based compensation expense | $ 105,594 | $ 139,093 |
| Unrecognized compensation cost related to non-vested stock option | $ 472,406 | |
| Share-based arrangement, non-vested weighted average period | 1 year 2 months 12 days | |
| Sales and marketing expense | ||
| SHARE-BASED PAYMENTS | ||
| Stock-based compensation expense | $ 14,399 | $ 14,399 |