Note 2 - Significant Accounting Policies (Details) - Accumulated Other Comprehensive Loss (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accumulated Other Comprehensive Loss [Abstract]        
Net unrealized gains/(losses) on Available-for-sale Securities $ (25) $ 15 $ 30 $ 22
Foreign Currency Translation Adjustment (5,066) (5,066) (5,066) (5,066)
Accumulated Other Comprehensive Loss (5,091) (5,051) (5,036) (5,044)
Net unrealized gains/(losses) on Available-for-sale Securities (40) (15) 8  
Accumulated Other Comprehensive Loss $ (40) $ (15) $ 8