Note 13 - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets, Gross	$ 34,000
Finite-Lived Intangible Assets, Accumulated Amortization	731
Finite-Lived Intangible Assets, Net	$ 33,269
Finite-Lived Intangible Asset, Useful Life (Month)
Trade Names [Member]
Finite-Lived Intangible Assets, Gross	$ 4,400
Finite-Lived Intangible Assets, Accumulated Amortization	73
Finite-Lived Intangible Assets, Net	$ 4,327
Finite-Lived Intangible Asset, Useful Life (Month)	15 years
Noncompete Agreements [Member]
Finite-Lived Intangible Assets, Gross	$ 1,400
Finite-Lived Intangible Assets, Accumulated Amortization	70
Finite-Lived Intangible Assets, Net	$ 1,330
Finite-Lived Intangible Asset, Useful Life (Month)	5 years
Customer Relationships [Member]
Finite-Lived Intangible Assets, Gross	$ 28,200
Finite-Lived Intangible Assets, Accumulated Amortization	588
Finite-Lived Intangible Assets, Net	$ 27,612
Finite-Lived Intangible Asset, Useful Life (Month)	12 years