XML 52 R41.htm IDEA: XBRL DOCUMENT v3.21.2
ACCOUNTS RECEIVABLE (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]    
Accounts receivable trade $ 19,696,183 $ 11,751,679
Allowance for doubtful accounts (1,316,511) (612,746)
Accounts receivable trade, net $ 18,379,672 $ 11,138,933