SHARE-BASED PAYMENTS - Stock-based Compensation (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
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| SHARE-BASED PAYMENTS | ||
| Stock-based compensation expense | $ 36,976 | $ 49,932 |
| Unrecognized compensation cost related to non-vested stock option | $ 201,299 | |
| Share-based arrangement, non-vested weighted average period | 1 year 6 months 18 days | |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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