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Income Taxes - Additional Information (Detail) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥)
Income Taxes [Line Items] |  |  |
Deferred tax assets related to net operating loss carry forwards | $ 10,645,496 | ¥ 67,839,480 |
Deferred tax assets related to net operating loss carry forwards, beginning expire year if not utilized | 2022 |  |
Deferred tax assets related to net operating loss carry forwards, ending expire year if not utilized | 2031 |  |
Cumulative amount of the temporary differences in respect of investments in foreign subsidiaries | $ 306 | ¥ 1,951 | ¥ 1,550
Enterprise Income Tax Law [Member] |  |  |
Income Taxes [Line Items] |  |  |
Income tax rate | 10.00% |  |
Percentage of withholding tax applicable | 10.00% |  |
Hong Kong [Member] |  |  |
Income Taxes [Line Items] |  |  |
Withholding tax amount | $ 0 |  |
Income tax rate | 16.50% |  |
Cayman Islands [Member] |  |  |
Income Taxes [Line Items] |  |  |
Withholding tax amount | $ 0 |  |

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