XML 157 R129.htm IDEA: XBRL DOCUMENT v3.21.4
Parent Only Information (Details) - CNY (¥)
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Parent Only Information (Details) [Line Items]      
Current liabilities ¥ 8,220,000 ¥ 23,692,000 ¥ 11,513
Non-current liabilities     69,762
Minimum [Member]      
Parent Only Information (Details) [Line Items]      
Current liabilities     11,513
Non-current liabilities    
Maximum [Member]      
Parent Only Information (Details) [Line Items]      
Current liabilities     81,275
Non-current liabilities     ¥ 69,762