XML 87 R47.htm IDEA: XBRL DOCUMENT v3.20.1
ACCOUNTS RECEIVABLE, NET (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Credit Loss [Abstract]      
Accounts receivable $ 15,098,733 $ 12,534,236  
Allowance for doubtful accounts (1,467,374) (644,090) $ (198,516)
Total accounts receivable, net $ 13,631,359 $ 11,890,146