Note 5 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Amortization of Intangible Assets	$ 1,161	$ 229
Fair Value Inputs, Discount Rate	14.50%	18.50%
Goodwill and Intangible Asset Impairment	$ 0	$ 0