Summary of Significant Accounting Policies - Cash and cash equivalents - Additional Information (Details) |
9 Months Ended | 12 Months Ended | ||
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Dec. 31, 2017
CNY (¥)
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Dec. 31, 2019
CNY (¥)
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Dec. 31, 2019
USD ($)
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Dec. 31, 2018
CNY (¥)
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| Cash, cash equivalents, restricted cash and short term loan | ||||
| Net cash received from financing activities | ¥ (70,148,709) | ¥ 57,566,469 | $ 8,268,906 | ¥ (949,893,989) |
| ASU 2016-18 | Adjustment | ||||
| Cash, cash equivalents, restricted cash and short term loan | ||||
| Restricted cash | 30,000,000 | |||
| Net cash received from financing activities | ¥ (30,000,000) | |||
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- Definition Definition not available. No definition available.
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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