Annual report pursuant to Section 13 and 15(d)

Concentrations - Schedule of Concentration Risk (Details) (Parenthetical)

v3.21.1
Concentrations - Schedule of Concentration Risk (Details) (Parenthetical)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Supplier [Member]    
Concentration risk 10.00% 10.00%