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Other Income, Net - Schedule of Other Income (Detail)	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)
Other Non Operating Income [Line Items]
Other income, net	¥ 41,911,589	$ 6,576,843	¥ 49,139,337	¥ 41,300,464
Government Subsidy [Member]
Other Non Operating Income [Line Items]
Other income, net	35,384,908	5,552,664	35,888,591	36,769,550
Other [Member]
Other Non Operating Income [Line Items]
Other income, net	¥ 6,526,681	$ 1,024,179	¥ 13,250,746	¥ 4,530,914

X

- Definition

Other Non Operating Income

+ References

No definition available.

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- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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