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Parent Only Information (Details) - Schedule of condensed statements of cash flows - Parent [Member]
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2020
CNY (¥)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
Condensed Cash Flow Statements, Captions [Line Items]        
Net cash used in operating activities ¥ (179,963) $ (27,581) ¥ (69,622)
Net cash used in investing activities
Net cash provided by financing activities 375,462 57,542 69,762
Reverse recapitalization 39,162 6,002
Equity financing through PIPE 336,300 51,540
Cash received from convertible bond 69,762
Net increase in cash and cash equivalents 177,862 27,259 140
Cash and cash equivalents at beginning of the year 140 21
Cash and cash equivalents at end of the year ¥ 178,002 $ 27,280 ¥ 140