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Note 5 - Goodwill and Intangible Assets - Intangible Assets, Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Accumulated amortization $ (8,971) $ (8,017)
Intangible assets, gross 37,276 37,276
Intangible assets, net 28,305 29,259
Trade Names [Member]    
Trade names - not subject to amortization 18,995 18,995
Customer Relationships [Member]    
Finite-lived intangible assets, gross 18,022 18,022
Accumulated amortization (8,801) (7,900)
Finite-lived intangible assets, net 9,221 10,122
Noncompete Agreements [Member]    
Finite-lived intangible assets, gross 259 259
Accumulated amortization (170) (117)
Finite-lived intangible assets, net $ 89 $ 142