Note 2 - Acquisitions (Details) - Components of Intangible Assets Acquired (Symon Holdings Corporation [Member], USD $)
Apr. 19, 2013
Acquired Finite-Lived Intangible Assets [Line Items]  
Acquired Intangible Assets $ 23,990,000
Customer Relationships [Member]
 
Acquired Finite-Lived Intangible Assets [Line Items]  
Acquired Intangible Assets 15,700,000
Developed Technology Rights [Member]
 
Acquired Finite-Lived Intangible Assets [Line Items]  
Acquired Intangible Assets 7,600,000
Customer Order Backlog [Member]
 
Acquired Finite-Lived Intangible Assets [Line Items]  
Acquired Intangible Assets 400,000
Noncompete Agreements [Member]
 
Acquired Finite-Lived Intangible Assets [Line Items]  
Acquired Intangible Assets $ 290,000