ACCOUNTS RECEIVABLE (Tables)

3 Months Ended

Mar. 31, 2021

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

At March 31, 2021 and December 31, 2020, accounts receivable consists of:

	March 31, 2021			December 31, 2020
	(unaudited)
Accounts receivable from customers	$	2,184,799		$	2,724,137
Allowance for doubtful accounts		(340,467	)		(343,832	)
Accounts receivable, net	$	1,844,332		$	2,380,305