Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details)

v2.4.0.6
Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Summary of acquired intangible assets    
Gross Carrying Amount $ 18,386 $ 18,386
Accumulated Amortization 5,039 4,386
Patents [Member]
   
Summary of acquired intangible assets    
Weighted Average Life 12 years  
Gross Carrying Amount 1,271 1,271
Accumulated Amortization 735 685
Trade Names [Member]
   
Summary of acquired intangible assets    
Gross Carrying Amount 1,853 1,853
Accumulated Amortization 72 7
Trade Names [Member] | Minimum [Member]
   
Summary of acquired intangible assets    
Weighted Average Life 0 years  
Trade Names [Member] | Maximum [Member]
   
Summary of acquired intangible assets    
Weighted Average Life 10 years  
Completed and Unpatented Technology [Member]
   
Summary of acquired intangible assets    
Gross Carrying Amount 5,277 5,277
Accumulated Amortization 1,472 1,242
Completed and Unpatented Technology [Member] | Minimum [Member]
   
Summary of acquired intangible assets    
Weighted Average Life 10 years  
Completed and Unpatented Technology [Member] | Maximum [Member]
   
Summary of acquired intangible assets    
Weighted Average Life 15 years  
Backlog and Customer Relationships [Member]
   
Summary of acquired intangible assets    
Gross Carrying Amount 9,985 9,985
Accumulated Amortization $ 2,760 $ 2,452
Backlog and Customer Relationships [Member] | Minimum [Member]
   
Summary of acquired intangible assets    
Weighted Average Life 3 years  
Backlog and Customer Relationships [Member] | Maximum [Member]
   
Summary of acquired intangible assets    
Weighted Average Life 20 years