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Note 6 - Segment Reporting (Details) - Net Revenues and Carrying Values of Long-Lived Assets of Enterprises by Geographic Regions (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net Revenue $ 59,711 $ 59,318 $ 154,584 $ 174,805  
Long-Lived Assets 134,112   134,112   116,619
UNITED STATES
         
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net Revenue 53,729 59,318 148,500 174,805  
Long-Lived Assets 98,744   98,744   99,398
CHINA
         
Revenues from External Customers and Long-Lived Assets [Line Items]          
Long-Lived Assets 21,011   21,011   17,221
FRANCE
         
Revenues from External Customers and Long-Lived Assets [Line Items]          
Net Revenue 5,982   6,084    
Long-Lived Assets $ 14,357   $ 14,357