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Prepaid Project Costs and Other Long-term Assets (Details Narrative) - USD ($) $ in Millions	Sep. 30, 2025	May 31, 2025	Dec. 31, 2024	Dec. 31, 2022
Battelle Energy Alliance, LLC (BEA) [Member]
Prepaid project costs				$ 0.4
Prepaid Expenses And Other Current Assets [Member]
Prepaid project costs	$ 0.3		$ 0.5
Prepaid Expenses And Other Current Assets [Member] | Maximum [Member]
Prepaid project costs		$ 0.5
Prepaid Expenses And Other Current Assets [Member] | Minimum [Member]
Prepaid project costs		$ 0.1

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