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Note 4 - Balance Sheet Components - Intangible Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Less: Accumulated amortization	$ (7,264)	$ (6,765)
Total	741	1,220
Acquired Patents and Licenses [Member]
Acquired patents and licenses	$ 8,005	$ 7,985

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/exampleRef
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