Note 7 - Goodwill and Other Acquired Intangible Assets, Net Schedule of Finite Lived Assets Future Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 12,400	$ 11,800	$ 13,200
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	8,688
Finite-Lived Intangible Assets, Amortization Expense, Year Two	7,321
Finite-Lived Intangible Assets, Amortization Expense, Year Three	5,907
Finite-Lived Intangible Assets, Amortization Expense, Year Four	5,375
Finite-Lived Intangible Assets, Amortization Expense, Year Five	4,923
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	12,692
Finite-Lived Intangible Assets, Net	$ 44,906