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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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Percentage of withholding tax applicable.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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