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Note 6 - Formation of EverOn Energy Joint Venture and Consolidation of Variable Interest Entity - Assets Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Oct. 31, 2025	Sep. 30, 2025	Dec. 31, 2024
Goodwill	$ 18,964			$ 241
EverOn Energy LLC [Member]
Goodwill	18,964		$ 19,000
Total Fair Value of Invested Capital	56,944
Finite lived intangible assets	37,518	$ 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	24 years
Finite lived intangible assets	$ 26,200	$ 26,190
Finite lived intangible assets, annual amortization	1,091	$ 1,091
Favorable Contracts [Member] \| EverOn Energy LLC [Member]
Finite lived intangible assets	$ 10,930
Finite lived intangible assets, useful life (Year)	15 years	15 years
Finite lived intangible assets	$ 10,900	$ 10,930
Finite lived intangible assets, annual amortization	729	$ 729
Software, Internally Developed [Member] \| EverOn Energy LLC [Member]
Finite lived intangible assets	$ 860
Finite lived intangible assets, useful life (Year)	15 years	15 years
Finite lived intangible assets		$ 860
Finite lived intangible assets, annual amortization	$ 57	$ 57