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Stock Options - Schedule of Fair Value Measurement of Pricing Model (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Dividend yield |  | 0.00% | 0.00%
Expected volatility | [1] | 52.00% | 54.00%
Risk-free interest rate | [2] | 0.23% |
Expected term of options (years) | [3] | 5 years | 5 years
Exercise price (US dollars) |  |  | $ 3.15
Share price (US dollars) |  |  | 6.3
Fair value (US dollars) |  |  | $ 4.19
Minimum [Member] |  |  |
Risk-free interest rate | [2] |  | 1.56%
Exercise price (US dollars) |  | $ 3.15 |
Share price (US dollars) |  | 7.63 |
Fair value (US dollars) |  | 4.83 |
Maximum [Member] |  |  |
Risk-free interest rate | [2] |  | 2.39%
Exercise price (US dollars) |  | 3.78 |
Fair value (US dollars) |  | $ 5.17 |
[1] | Due to the low trading volume of the Company's Common Stock, the expected volatility was based on the historical volatility of the share price of other public companies that operate in the same industry sector as the Company (agricultural chemical industry).
[2] | The risk-free interest rate represented the risk-free rate of US$ zero-coupon US Government Loans.
[3] | Due to the fact that the Company does not have sufficient historical exercise data, the expected term was determined based on the "simplified method" in accordance with SEC Staff Accounting Bulletin No. 110.

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- Definition Fair value (US dollars). + 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=115993241&loc=d3e301413-122809 + Details
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