Note 4 - Certain Balance Sheet Components - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Finite-lived intangible assets, gross	$ 880	$ 880
Finite-lived intangible assets, accumulated amortization	(415)	(371)
Finite-lived intangible assets, net	465	509
Developed Technology Rights [Member]
Finite-lived intangible assets, gross	760	760
Finite-lived intangible assets, accumulated amortization	(301)	(269)
Finite-lived intangible assets, net	459	491
Trade Names [Member]
Finite-lived intangible assets, gross	120	120
Finite-lived intangible assets, accumulated amortization	(114)	(102)
Finite-lived intangible assets, net	$ 6	$ 18

Amount of accumulated amortization of finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482558/350-40-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-SubTopic 30
-Topic 350
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480265/350-10-S45-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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