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Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - Dec. 31, 2020 - Maximum [Member] | CNY (¥) | USD ($)
--- | --- | ---
Cash and Cash Equivalents [Line Items] |  |
Cash, FDIC Insured Amount |  | $ 250,000
CHINA |  |
Cash and Cash Equivalents [Line Items] |  |
Cash deposits, insured | ¥ 500,000 | $ 70,000

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- Definition The amount of cash deposited in foreign banks that is insured. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Period Type: |

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- Details
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