4. ACCOUNTS RECEIVABLE (Tables)

6 Months Ended

Jun. 30, 2016

Receivables [Abstract]

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

At June 30, 2016 and December 31, 2015, accounts receivable consists of:

	June 30, 2016			December 31, 2015
Accounts receivable from customers	$	1,587,578		$	1,706,948
Allowance for doubtful accounts		(55,043	)		(56,364	)
Accounts receivable, net	$	1,532,535		$	1,650,584