Annual report [Section 13 and 15(d), not S-K Item 405]

Acquisition of American DG Energy Inc. (Details)

Acquisition of American DG Energy Inc. (Details) - USD ($)	May 18, 2017	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Business Combination [Line Items]
Goodwill		$ 1,248,442	$ 2,346,566	$ 2,743,424
Goodwill expected to be tax deductible	$ 0
American DG Energy
Business Combination [Line Items]
Ownership interest	100.00%
Goodwill	$ 13,300,000

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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