Note 13 - Other Financial Statement Information - Intangible Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Gross intangible assets	$ 224	$ 214
Less: Accumulated amortization	(214)	(199)
Intangible assets, net	10	15
Intellectual Property [Member]
Gross intangible assets	$ 224	$ 214

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
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-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
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-Topic 350
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
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-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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-Name Accounting Standards Codification
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