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Fixed Assets (Tables)
3 Months Ended
Mar. 31, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
Fixed assets are summarized as follows:
 
 
 
March 31,
 
December 31,
 
 
 
2015
 
2014
 
 
 
(unaudited)
 
 
 
 
Machinery and equipment
 
$
647,000
 
$
646,000
 
Office furniture and equipment
 
 
108,000
 
 
98,000
 
Leasehold improvements
 
 
130,000
 
 
124,000
 
Accumulated depreciation
 
 
(659,000)
 
 
(605,000)
 
 
 
$
226,000
 
$
263,000