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Income Taxes Provision for income taxes, Region (Tables)
 12 Months Ended
Dec. 31, 2013
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
The provision for income taxes attributable to continuing operations is based upon income (loss) before income taxes from continuing operations as follows (in thousands):
 
Year ended 31 December
 
2013
 
2012
 
2011
Domestic
$
(18,037
)
 
$
(13,614
)
 
$
(13,782
)
Foreign
(70
)
 
652

 
1,111

 
$
(18,107
)
 
$
(12,962
)
 
$
(12,671
)