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ACCOUNTS RECEIVABLE
 6 Months Ended
Jun. 30, 2022
Receivables [Abstract]  
ACCOUNTS RECEIVABLE

4. ACCOUNTS RECEIVABLE

 

   June 30, 2022   December 31, 2021 
         
Accounts receivable  $6,936,409   $7,403,308 
Allowances for doubtful accounts   (273,332)   (273,979)
Total accounts receivable  $6,663,077   $7,129,329