Note 4 - Discontinued Operations and Assets and Liabilities Held for Sale (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2026	Jun. 30, 2025
Impairment of Discontinued Operations		$ 1,356	$ 2,731
Loss on deconsolidation of subsidiary	$ 1,101	$ (1,101)	$ (0)
Sono Motors GmbH [Member]
Impairment of Discontinued Operations	$ 519

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 810
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481203/810-10-50-1B

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration