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Note 8 - Customer and Geographic Information (Details) - Long-lived Assets, by Geographical Areas (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Note 8 - Customer and Geographic Information (Details) - Long-lived Assets, by Geographical Areas [Line Items]    
Long-lived assets net, by geographical areas $ 5,799 $ 3,898
United States [Member]
    
Note 8 - Customer and Geographic Information (Details) - Long-lived Assets, by Geographical Areas [Line Items]    
Long-lived assets net, by geographical areas 5,349 3,527
Asia [Member]
    
Note 8 - Customer and Geographic Information (Details) - Long-lived Assets, by Geographical Areas [Line Items]    
Long-lived assets net, by geographical areas 328 295
Europe [Member]
    
Note 8 - Customer and Geographic Information (Details) - Long-lived Assets, by Geographical Areas [Line Items]    
Long-lived assets net, by geographical areas $ 122 $ 76