Note 4 - Goodwill and Intangibles (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Amortization of Intangible Assets	$ 2.1	$ 2.9	$ 2.9
Finite-Lived Intangible Asset, Useful Life	12 years