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Summary of Significant Accounting Policies (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Time Deposits, at Carrying Value $ 45,000 $ 72,000  
Cash 73,000 84,200  
Marketable Securities, Restricted 1,273 1,266  
Advertising Expense $ 73 $ 59 $ 161
Restricted Stock Units (Rsus) [Member]
     
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   437,029  
Ordinary Shares [Member]
     
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   874,058  
Patents [Member] | Minimum [Member]
     
Finite-Lived Intangible Asset, Useful Life 5 years    
Patents [Member] | Maximum [Member]
     
Finite-Lived Intangible Asset, Useful Life 15 years    
Technology [Member] | Minimum [Member]
     
Finite-Lived Intangible Asset, Useful Life 5 years    
Technology [Member] | Maximum [Member]
     
Finite-Lived Intangible Asset, Useful Life 7 years    
Customer Relationships [Member]
     
Finite-Lived Intangible Asset, Useful Life 7 years    
Building [Member]
     
Property, Plant and Equipment, Useful Life 25 years    
Building Improvements [Member] | Minimum [Member]
     
Property, Plant and Equipment, Useful Life 4 years    
Building Improvements [Member] | Maximum [Member]
     
Property, Plant and Equipment, Useful Life 16 years    
Machinery [Member] | Minimum [Member]
     
Property, Plant and Equipment, Useful Life 4 years    
Machinery [Member] | Maximum [Member]
     
Property, Plant and Equipment, Useful Life 6 years    
Research and Development [Member] | Minimum [Member]
     
Property, Plant and Equipment, Useful Life 2 years    
Research and Development [Member] | Maximum [Member]
     
Property, Plant and Equipment, Useful Life 6 years    
Office Furniture and Equipment [Member] | Minimum [Member]
     
Property, Plant and Equipment, Useful Life 2 years    
Office Furniture and Equipment [Member] | Maximum [Member]
     
Property, Plant and Equipment, Useful Life 7 years    
Property, Plant and Equipment, Other Types [Member] | Minimum [Member]
     
Property, Plant and Equipment, Useful Life 2 years    
Property, Plant and Equipment, Other Types [Member] | Maximum [Member]
     
Property, Plant and Equipment, Useful Life 10 years    
Software [Member] | Minimum [Member]
     
Property, Plant and Equipment, Useful Life 2 years    
Software [Member] | Maximum [Member]
     
Property, Plant and Equipment, Useful Life 6 years