XML 48 R39.htm IDEA: XBRL DOCUMENT v3.21.2
Equity (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Equity (Details) [Line Items]    
Net assets $ 12,352,859  
VIE [Member]    
Equity (Details) [Line Items]    
Net assets   $ 12,088,293