Note 2 - Acquisition - Schedule of Business Acquisitions (Details) (Parentheticals)	Dec. 05, 2025 shares
Comtrafo Industria de Transformadores Eletricos S.A. (Comtrafo) [Member]
Business Combination, Share Issued (in shares)	2,417,142

Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 41
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479303/805-10-55-41

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
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-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
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Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
-SubTopic 10
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-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479303/805-10-55-42

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration