Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable (Tables)

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Accounts Receivable (Tables)
9 Months Ended
Sep. 30, 2015
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Accounts receivable, net consisted of the following:
 
 
 
September 30,
 
December 31,
 
 
 
2015
 
2014
 
 
 
(unaudited)
 
 
 
Trade receivables
 
$
716,846
 
$
231,412
 
Grant receivables
 
 
-
 
 
132,227
 
Other receivables
 
 
78,713
 
 
107,657
 
 
 
 
795,559
 
 
471,296
 
Allowance for doubtful accounts
 
 
-
 
 
(24,775)
 
 
 
$
795,559
 
$
446,521