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ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables)
9 Months Ended
Sep. 30, 2015
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Accounts receivable - net consists of:
 
 
 
September 30, 2015
 
December 31, 2014
 
Accounts receivable
 
$
11,229,000
 
$
9,693,000
 
Allowance for doubtful accounts
 
 
(168,000)
 
 
(146,000)
 
 
 
$
11,061,000
 
$
9,547,000