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SHARE-BASED COMPENSATION, Assumptions (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Unrecognized Compensation Cost [Abstract] |  |  |
Total unrecognized compensation cost | $ 2,189,201 |  |
Unrecognized compensation cost, recognition period | 2 years 18 days |  |
Stock Options [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected dividends yield |  | 0.00% | 0.00%
Stock Options [Member] | Modification [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected dividends yield | 0.00% |  |
The fair value of underlying ordinary shares (in dollars per share) | $ 5.74 |  |
Stock Options [Member] | Before Modification [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected dividends yield | 0.00% |  |
Stock Options [Member] | Minimum [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected volatility |  | 82.33% | 82.33%
Risk-free interest rate per annum |  | 1.84% | 1.84%
The fair value of underlying ordinary shares (in dollars per share) |  | $ 1.21 | $ 1.21
Stock Options [Member] | Minimum [Member] | Modification [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected volatility | 58.09% |  |
Risk-free interest rate per annum | 0.06% |  |
Stock Options [Member] | Minimum [Member] | Before Modification [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected volatility | 82.33% |  |
Risk-free interest rate per annum | 1.84% |  |
The fair value of underlying ordinary shares (in dollars per share) | $ 1.21 |  |
Stock Options [Member] | Maximum [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected volatility |  | 93.48% | 93.48%
Risk-free interest rate per annum |  | 2.40% | 2.40%
The fair value of underlying ordinary shares (in dollars per share) |  | $ 2.92 | $ 2.92
Stock Options [Member] | Maximum [Member] | Modification [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected volatility | 91.85% |  |
Risk-free interest rate per annum | 1.36% |  |
Stock Options [Member] | Maximum [Member] | Before Modification [Member] |  |  |
Assumptions Used in Valuing Stock Options [Abstract] |  |  |
Expected volatility | 93.48% |  |
Risk-free interest rate per annum | 2.40% |  |
The fair value of underlying ordinary shares (in dollars per share) | $ 2.92 |  |

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- References No definition available. + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. + References No definition available. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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