Note 7 - Goodwill and Intangible Assets - Intangible Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accumulated amortization	$ (8,017)	$ (6,740)
Intangible assets, gross	37,276	31,654
Intangible assets, net	29,259	24,914
Trade Names [Member]
Trade name - not subject to amortization	18,995	17,525
Customer Relationships [Member]
Finite-lived intangible assets, gross	18,022	13,972
Accumulated amortization	(7,900)	(6,698)
Finite-lived intangible assets, net	10,122	7,274
Noncompete Agreements [Member]
Finite-lived intangible assets, gross	259	157
Accumulated amortization	(117)	(42)
Finite-lived intangible assets, net	$ 142	$ 115