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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property and equipment are stated at cost less accumulated depreciation and amortization (in thousands) and consist of the following:
 
 
 
September 30,
 
December 31,
 
 
 
2015
 
2014
 
Equipment
 
$
13,666
 
$
13,719
 
Software
 
 
5,042
 
 
4,863
 
Furniture and equipment
 
 
2,351
 
 
2,348
 
Leasehold improvements
 
 
4,952
 
 
4,919
 
Total
 
 
26,011
 
 
25,849
 
Less: accumulated depreciation and amortization
 
 
(21,070)
 
 
(19,934)
 
 
 
$
4,941
 
$
5,915