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Leases (Tables) | 12 Months Ended
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Dec. 31, 2023
Leases [Abstract] |
Schedule of Balance Sheet Information Related to Operating Lease | Supplemental balance sheet information related to operating lease was as follows:
|  | As of |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2023 |
|  | RMB |  |  | RMB |  |  | US$ |
Right-of-use assets |  |  | 31,403,688 |  |  |  | 12,237,211 |  |  |  | 1,728,505 |
Less: impairment |  |  | - |  |  |  | (3,244,676 | ) |  |  | (458,857 | )
Right-of-use assets |  |  | 31,403,688 |  |  |  | 8,992,535 |  |  |  | 1,269,648 |
Operating lease liabilities – current |  |  | 18,079,265 |  |  |  | 8,806,671 |  |  |  | 1,243,406 |
Operating lease liabilities – non-current |  |  | 13,276,535 |  |  |  | 5,216,622 |  |  |  | 736,530 |
Total operating lease liabilities |  |  | 31,355,800 |  |  |  | 14,023,293 |  |  |  | 1,979,936 |
|  | As of |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2023 |
|  | RMB |  |  | RMB |  |  | US$ |
Lease expense |  |  |  |  |  |  |  |  |
Operating lease expense - third party |  |  | 10,933,292 |  |  |  | 10,148,284 |  |  |  | 1,432,827 |
Short-term lease expense |  |  | - |  |  |  | 15,056,781 |  |  |  | 2,125,853 |
Sublease income (1) |  |  | - |  |  |  | (707,009 | ) |  |  | (99,822 | )
Total lease expense |  |  | 10,933,292 |  |  |  | 24,498,055 |  |  |  | 3,458,858 |
Other information |  |  |  |  |  |  |  |  |  |  |  |
Cash paid for operating leases |  |  |  |  |  |  | 8,543,549 |  |  |  | 1,206,256 |
Right-of-use assets obtained in exchange for operating new lease liabilities |  |  | 35,873,660 |  |  |  | 15,838,886 |  |  |  | 2,236,278 |
| * (1) | For the year ended December 31, 2023, the Group incurred sublease income of RMB 707,009 (US$99,822), and sublease cost of RMB 858,098 (US$121,154).
Schedule of Weighted Average Remaining Lease Terms and Discount Rates | The weighted average remaining lease terms and discount rates for the operating lease as of December 31, 2023 were as follows:
Remaining lease term and discount rate: |  |  |
Weighted average remaining lease term (years) |  |  | 2.33 |
Weighted average discount rate |  |  | 4.2 | %
Schedule of Future Minimum Payments | The following is a schedule of future minimum payments under the Group’s operating leases as of December 31, 2023:
Year |  | Amounts |
|  | RMB |  |  | US$ |
2024 |  |  | 9,206,946 |  |  |  | 1,299,920 |
2025 |  |  | 3,510,711 |  |  |  | 495,674 |
2026 |  |  | 581,689 |  |  |  | 82,128 |
2027 |  |  | 539,727 |  |  |  | 76,204 |
2028 |  |  | 334,122 |  |  |  | 47,174 |
Thereafter |  |  | 558,808 |  |  |  | 78,898 |
Total lease payments |  |  | 14,732,003 |  |  |  | 2,079,998 |
Less: imputed interest |  |  | 708,710 |  |  |  | 100,062 |
Total operating lease liabilities, net of interest |  |  | 14,023,293 |  |  |  | 1,979,936 |

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- Definition Tabular disclosure for lessee's operating leases. Includes, but is not limited to, description of lessee's operating lease, existence and terms of renewal or purchase options and escalation clauses, restrictions imposed by lease, such as those concerning dividends, additional debt, and further leasing, rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481440/840-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Subparagraph (Note 3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481418/840-10-55-40 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481501/840-20-50-1 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-4 Reference 5: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481501/840-20-50-2 + Details
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