Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses (Tables)

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Accrued Expenses (Tables)
6 Months Ended
Jun. 30, 2015
Accounts Payable and Accrued Liabilities, Current [Abstract]  
Schedule of Accrued Liabilities [Table Text Block]
Accrued expenses consisted of the following:
 
 
 
June 30,
 
December 31,
 
 
 
2015
 
2014
 
 
 
(unaudited)
 
 
 
Accrued compensation
 
$
499,150
 
$
548,953
 
Warranty reserve
 
 
268,488
 
 
143,364
 
Other
 
 
113,393
 
 
80,802
 
 
 
$
881,031
 
$
773,119