Note 9 - Goodwill and Intangible Assets (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Amortization of Intangible Assets	$ 3,213,000	$ 3,823,000	$ 8,715,000	$ 5,291,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	11,900,000		11,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	11,300,000		11,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	6,700,000		6,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	4,500,000		4,500,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 3,000,000		$ 3,000,000