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Long-Term Investment (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2020 | Jun. 30, 2018
Debt Disclosure [Abstract] |  |  |
Impairment loss | $ 2.75 |  |
Percentage of equity investment |  |  | 10.00%
Write down the remaining carrying value |  | $ 12.25 |

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- Definition Write down the remaining carrying value. + References No definition available. + Details
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- Definition Amount of realized gain (loss) on investment in debt and equity securities. Excludes other-than-temporary impairment (OTTI). + References No definition available. + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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