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ORDINARY SHARES PURCHASE WARRANTS ISSUED TO INVESTORS (Details) | 1 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2020 item $ / shares shares | May 31, 2020 item | Dec. 31, 2021 CNY (¥) ¥ / shares shares | Dec. 31, 2021 USD ($) ¥ / shares shares | Jun. 30, 2021 CNY (¥) ¥ / shares shares | Jun. 30, 2021 USD ($) ¥ / shares shares | Jun. 14, 2021 ¥ / shares shares | May 31, 2021 $ / shares | Jun. 26, 2020 USD ($) $ / shares shares | May 21, 2020 USD ($) shares
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Number of offerings | item | 2 | 2 |  |  |  |  |  |  |  |
Number of warrants to purchase ordinary shares | 911,112 |  |  |  | 29,520,000 | 29,520,000 |  |  | 1,680,000 |
Exercise price of warrants (in dollars per share) | $ / shares | $ 1.25 |  |  |  |  |  |  | $ 2.25 | $ 1.25 |
Fair value of warrants | $ |  |  |  | $ 22,880,000 |  |  |  |  | $ 1,639,333 | $ 1,689,389
Fair value of the warrant liability |  |  | ¥ 42,239,816 | $ 6,640,000 | ¥ 190,635,850 | $ 5,340,000 |  |  |  |
Class A ordinary shares |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Number of warrants to purchase ordinary shares |  |  |  |  |  |  | 6,014,102 |  | 1,680,000 | 911,112
Second offering [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Number of warrants to purchase ordinary shares |  |  | 8,814,102 | 8,814,102 |  |  |  |  |  |
Class of Warrant or Right, Outstanding |  |  | 34,860,000 | 34,860,000 |  |  |  |  |  |
Risk-free interest rate |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  | 1.25 | 1.25 | 0.95 | 0.95 | 0.90 |  | 0.35 | 0.40
Warrant life |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  | 5.0 | 5.0 | 5.5 | 5.5 | 5.5 |  |  |
Warrants and rights outstanding, term |  |  |  |  |  |  |  |  | 5 years 6 months | 5 years 6 months
Volatility |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  | 109 | 109 | 111 | 111 | 111 |  | 104.26 | 99.50
Expected dividend yield |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |
Warrants outstanding, measurement input |  |  |  |  |  |  |  |  | 0 | 0

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details
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