Note 5 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Jul. 31, 2015
Intangibles, gross	$ 19,780	$ 12,729
Intangibles, accumulated amortization	(6,545)	(7,912)
Intangibles, net	$ 13,235	4,817
Intangible, weighted average useful life (Year)	7 years 8 months 12 days
Trade Names [Member]
Intangibles, gross	$ 7,069	2,900
Intangibles, accumulated amortization	(1,266)	(902)
Intangibles, net	$ 5,803	1,998
Intangible, weighted average useful life (Year)	12 years 3 months 18 days
Customer Lists [Member]
Intangibles, gross	$ 6,182	3,300
Intangibles, accumulated amortization	(624)	(3,080)
Intangibles, net	$ 5,558	220
Intangible, weighted average useful life (Year)	4 years 6 months
Operating Rights [Member]
Intangibles, gross	$ 6,529	6,529	$ 6,500
Intangibles, accumulated amortization	(4,655)	(3,930)
Intangibles, net	$ 1,874	$ 2,599
Intangible, weighted average useful life (Year)	2 years 7 months 6 days

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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