Note 6 - Goodwill and Intangible Assets - Changes in the Amount of the Carrying Value of Indefinite-lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Balance	$ 8,428	$ 6,710
Impact of foreign currency translation adjustments	(79)	(10)
Adjustments to preliminary amounts recorded in the fourth quarter of 2021 (see Note 3)	20
Balance	$ 8,369	8,428
Videology [Member]
Indefinite-lived Intangible Assets Acquired		850
Acculogic [Member]
Indefinite-lived Intangible Assets Acquired		$ 878

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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 (b)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

+ References

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- Definition

Amount of increase (decrease) of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit, from purchase accounting adjustments.

+ References

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- Definition

Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition.

+ References

No definition available.

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