Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable (Details) - Schedule of accounts receivable

v3.21.2
Accounts Receivable (Details) - Schedule of accounts receivable - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Schedule of accounts receivable [Abstract]    
Accounts receivable $ 22,536,126 $ 32,357,692
Less: allowance for doubtful accounts (314,256) (411,131)
Accounts receivable, net $ 22,221,870 $ 31,946,561