Note 10 - Goodwill and Intangible Assets (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill and Intangible Asset Impairment	$ 0	$ 0	$ 0
Amortization of Intangible Assets	11,982,000	$ 8,297,000	$ 336,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	12,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	12,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	7,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	5,800,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 3,400,000