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Note 7 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Gross Carrying Amount		$ 2,510	$ 2,710
Accumulated Amortization		(1,279)	(1,157)
Intangible Assets, Net		1,231	1,553
Customer Relationships [Member]
Gross Carrying Amount		1,378	1,378
Accumulated Amortization		(827)	(689)
Intangible Assets, Net		551	689
Trademarks and Trade Names [Member]
Gross Carrying Amount		1,132	1,132
Accumulated Amortization		(452)	(377)
Intangible Assets, Net		$ 680	755
Backlog [Member]
Gross Carrying Amount	[1]		200
Accumulated Amortization	[1]		(91)
Intangible Assets, Net	[1]		$ 109
[1] Backlog, included in the July 2018 acquisition of Ameron, has a weighted-average amortization period of eleven months.

X

- Definition

Accumulated amount of 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 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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- Definition

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
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