Note 7 - Goodwill and Identifiable Intangible Assets (Details) (Cortina Systems, Inc. [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Cortina Systems, Inc. [Member]
 
Note 7 - Goodwill and Identifiable Intangible Assets (Details) [Line Items]  
Goodwill, Acquired During Period $ 3,530