Note 2 - Acquisition (Details) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified
12 Months Ended 0 Months Ended 3 Months Ended
Dec. 31, 2014
Oct. 03, 2014
Dec. 31, 2014
Note 2 - Acquisition (Details) [Line Items]      
Payments to Acquire Businesses, Gross $ 52,509    
General and Administrative Expense [Member] | Cortina Systems, Inc. [Member]      
Note 2 - Acquisition (Details) [Line Items]      
Business Combination, Acquisition Related Costs 1,091    
In Process Research and Development [Member] | Cortina Systems, Inc. [Member]      
Note 2 - Acquisition (Details) [Line Items]      
Research and Development in Process   1,750  
Cortina Systems, Inc. [Member]      
Note 2 - Acquisition (Details) [Line Items]      
Payments to Acquire Businesses, Gross   52,509  
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)   5.3  
Escrow Deposit   16,500  
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual     21,018
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual     $ 10,018