Note 14 - Segment and Geographic Information (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Note 14 - Segment and Geographic Information (Details) [Line Items]    
Number of Reportable Segments 1  
Outside the United States [Member]    
Note 14 - Segment and Geographic Information (Details) [Line Items]    
Long-Lived Tangible Assets Located Outside Country 6,153 $ 5,217
TAIWAN, PROVINCE OF CHINA    
Note 14 - Segment and Geographic Information (Details) [Line Items]    
Long-Lived Tangible Assets Located Outside Country 3,463 $ 4,694