Investments - Schedule of Equity Investments Without Readily Determinable Fair Values (Details) |
Dec. 31, 2024
CNY (¥)
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Dec. 31, 2024
USD ($)
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Dec. 31, 2023
CNY (¥)
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|---|---|---|---|
| Equity Securities without Readily Determinable Fair Value [Line Items] | |||
| Initial cost | ¥ 51,523,212 | $ 7,058,651 | ¥ 51,523,212 |
| Cumulative unrealized gains | 302,931 | 41,501 | 302,931 |
| Cumulative unrealized losses (including impairment) | (42,000,000) | (5,753,976) | (42,000,000) |
| Total carrying value | ¥ 9,826,143 | $ 1,346,176 | ¥ 9,826,143 |
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- Definition Amount of investment in equity security without readily determinable fair value of initial cost. No definition available.
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- Definition Amount of cumulative loss from downward price adjustment on investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cumulative impairment loss on investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cumulative gain from upward price adjustment on investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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