Note 5 - Goodwill and Intangible Assets - Intangible Assets, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accumulated amortization	$ (8,336)	$ (8,017)
Intangible assets, gross	37,276	37,276
Intangible assets, net	28,940	29,259
Trade Names [Member]
Trade name - not subject to amortization	18,995	18,995
Customer Relationships [Member]
Finite-lived intangible assets, gross	18,022	18,022
Accumulated amortization	(8,200)	(7,900)
Finite-lived intangible assets, net	9,822	10,122
Noncompete Agreements [Member]
Finite-lived intangible assets, gross	259	259
Accumulated amortization	(136)	(117)
Finite-lived intangible assets, net	$ 123	$ 142