Note 5 - Goodwill and Other Intangibles - Components of Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Gross carrying value	$ 26,184	$ 19,173
Accumulated amortization	12,492	10,939
Net carrying value	13,692	8,234
Product Technology and Intellectual Property [Member]
Gross carrying value	11,728	10,267
Accumulated amortization	5,726	4,908
Net carrying value	6,002	5,359
Trademarks, Tradenames and Licenses [Member]
Gross carrying value	2,246	1,948
Accumulated amortization	1,561	1,468
Net carrying value	685	480
Customer Relationships [Member]
Gross carrying value	10,065	5,383
Accumulated amortization	3,806	3,299
Net carrying value	6,259	2,084
Other Intangible Assets [Member]
Gross carrying value	2,145	1,575
Accumulated amortization	1,399	1,264
Net carrying value	$ 746	$ 311

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

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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
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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