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Share-based payment (Details) - Schedule of weighted average assumptions applied to options - $ / shares |  | 12 Months Ended
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Nov. 02, 2018 | Dec. 31, 2020 | Dec. 31, 2018
Share-based payment (Details) - Schedule of weighted average assumptions applied to options [Line Items] |  |  |  |  |
Risk-free interest rate | [1] |  | 3.55% |  |
Expected dividend yield | [2] |  | 0.00% |  |
Volatility |  | 48.00% | 51.70% | [3] |
Exercise multiple (in Dollars per share) | [4] |  | $ 2.2 |  |
Life of options | [5] |  | 10 years |  |
Fair value of underlying ordinary shares (in Dollars per share) | [6] |  | $ 515.40 |  |
Minimum [Member] |  |  |  |  |
Share-based payment (Details) - Schedule of weighted average assumptions applied to options [Line Items] |  |  |  |  |
Risk-free interest rate | [1] |  |  |  | 1.54%
Volatility | [3] |  |  |  | 50.20%
Exercise multiple (in Dollars per share) | [4] |  |  |  | $ 2.2
Fair value of underlying ordinary shares (in Dollars per share) | [6] |  |  |  | $ 976.98
Maximum [Member] |  |  |  |  |
Share-based payment (Details) - Schedule of weighted average assumptions applied to options [Line Items] |  |  |  |  |
Risk-free interest rate | [1] |  | 1.61% |  |
Volatility | [3] |  | 51.80% |  |
Exercise multiple (in Dollars per share) | [4] |  | $ 2.8 |  |
Fair value of underlying ordinary shares (in Dollars per share) | [6] |  | $ 1,316.40 |  |
[1] | Risk-free interest rate Risk-free interest rate was estimated based on the market yield of US Government Bond with maturity close to the expected term of the options, plus country risk spread.
[2] | Expected dividend yield The dividend yield was estimated by the Company based on its expected dividend policy over the expected term of the options.
[3] | Volatility The volatility of the underlying ordinary shares during the lives of the options was estimated based on the historical stock price volatility of comparable listed companies over a period comparable to the expected term of the options.
[4] | Exercise multiple Exercise multiple represents the value of the underlying share as a multiple of exercise price of the option which, if achieved, results in exercise of the option.
[5] | Life of options Life of options was extracted from option agreements.
[6] | Fair value of underlying ordinary shares The estimated fair value of the ordinary shares underlying the options as of the respective grant dates was determined based on a valuation with the assistance of a third party appraiser.

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- Definition Fair value of underlying ordinary shares. + References No definition available. + 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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- Definition Expected term of 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 (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.D.2) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 + Details
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