Annual report pursuant to Section 13 and 15(d)

Certain Risks and Concentrations (Details) - Schedule of major customers

v3.21.2
Certain Risks and Concentrations (Details) - Schedule of major customers
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Customer A [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage 14.00% 19.00% 17.00%
Customer B [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage 13.00% [1] [1]
Customer C [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage 11.00% 15.00% 19.00%
Customer D [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage 10.00% [1] [1]
Customer E [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage [1] [1] 14.00%
[1] less than 10%