The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the entity's ownership percentage in the investee multiplied by the investee's total equity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 320
-SubTopic 10
-Section 45
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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 10
-Section 45
-Paragraph 13
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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.

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No definition available.

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The amount of capital contribution received from investee company in the process of winding up.

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- Definition

The maximum percentage of voting power of the investee.

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The cash outflow associated with the purchase of or advances to an cost method investments.

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Long-term investments - Additional Information (Details)	12 Months Ended
	Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Long-term investments
Impairment losses on long-term investments	¥ 26,865,733	$ 3,895,165			¥ 12,538,280
Underlying equities in net assets	¥ 48,074,531		¥ 74,940,264
Acquired equity interest through nominee arrangement
Long-term investments
Payments to acquire equity interest							¥ 40,000,000
Capital contribution received in the process of winding up			40,000,000
Investment income			2,926,504
Jiangxi Ruijing Financial Asset Management Co. Ltd. [Member]
Long-term investments
Equity interest acquired (in percentage)						15.00%
Payments to acquire cost method investment						¥ 225,000,000
Jiangxi Ruijing Financial Asset Management Co. Ltd. [Member] \| Acquired equity interest through nominee arrangement
Long-term investments
Equity interest acquired (in percentage)						15.00%
Private entities
Long-term investments
Payments to acquire equity interest			¥ 315,000,000	¥ 3,500,000			¥ 15,000,000
Equity interest acquired (in percentage)			45.00%	20.00%			10.00%
Maximum percentage of voting power of the investee				17.00%
Shenyang Tianxinhao Technology Limited
Long-term investments
Investment income \| $		$ 425,843
Guangzhou Rennuo Network Technology Co., Ltd \| Acquired equity interest through nominee arrangement
Long-term investments
Equity interest acquired (in percentage)							40.00%