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Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property, plant and equipment, stated at cost, consist of the following at June 30, 2014 and December 31, 2013 (in thousands):
 
 
 
June 30,
2014
 
December 31,
2013
 
Office furniture and equipment
 
$
788
 
$
788
 
Accumulated depreciation
 
 
(731)
 
 
(717)
 
Property, plant and equipment, net
 
$
57
 
$
71