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Note 14 - Contingent Consideration - Summary of the Key Assumptions Used to Calculate Fair Value of Warrants (Details) $ in Millions	Dec. 05, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)
Northeast Power Systems, Inc (NEPSI) [Member]
Fair value (millions)		$ 7.0	$ 3.1
Comtrafo Industria de Transformadores Eletricos S.A. (Comtrafo) [Member]
Fair value (millions)	$ 35.9
Measurement Input, EDITDA Continuous Risk Premium | Northeast Power Systems, Inc (NEPSI) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input		5.5	5.5
Measurement Input, EBITDA Continuous Risk Premium [Member] | Comtrafo Industria de Transformadores Eletricos S.A. (Comtrafo) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	2.1
Measurement Input, Revenue Volatility [Member] | Northeast Power Systems, Inc (NEPSI) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input		27.5	24.8
Measurement Input, EBITDA Volatility [Member] | Comtrafo Industria de Transformadores Eletricos S.A. (Comtrafo) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	25
Measurement Input, Share Price [Member] | Northeast Power Systems, Inc (NEPSI) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input		23.39	13.51
Measurement Input, Credit Spread [Member] | Comtrafo Industria de Transformadores Eletricos S.A. (Comtrafo) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	1.9
Measurement Input, Payment Delay [Member] | Northeast Power Systems, Inc (NEPSI) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input		80	80
Measurement Input, Payment Delay [Member] | Comtrafo Industria de Transformadores Eletricos S.A. (Comtrafo) [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	89

X

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

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X

- Definition

Value of input used to measure liability in contingent consideration arrangement in business combination.

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