Note 6 - Formation of EverOn Energy Joint Venture and Consolidation of Variable Interest Entity - Assets Acquired (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Goodwill	$ 18,964	$ 241
EverOn Energy LLC [Member]
Goodwill	18,964
Total Fair Value of Invested Capital	56,944
Finite lived intangible assets	37,980
Finite lived intangible assets, annual amortization	1,877
Customer Relationships [Member] \| EverOn Energy LLC [Member]
Finite lived intangible assets	$ 26,190
Finite lived intangible assets, useful life (Year)	24 years
Finite lived intangible assets	$ 26,190
Finite lived intangible assets, annual amortization	1,091
Favorable Contracts [Member] \| EverOn Energy LLC [Member]
Finite lived intangible assets	$ 10,930
Finite lived intangible assets, useful life (Year)	15 years
Finite lived intangible assets	$ 10,930
Finite lived intangible assets, annual amortization	729
Software, Internally Developed [Member] \| EverOn Energy LLC [Member]
Finite lived intangible assets	$ 860
Finite lived intangible assets, useful life (Year)	15 years
Finite lived intangible assets	$ 860
Finite lived intangible assets, annual amortization	$ 57

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