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Investment percentage.

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The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Amount of expense for employee benefit and equity-based compensation.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Amortized cost, after allowance for credit loss, of financing receivable classified as current. Excludes net investment in lease.

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Amount of noncurrent assets classified as other.

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Professional and contract service expense includes cost reimbursements for support services related to contracted projects, outsourced management, technical and staff support.

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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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The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Related Party Transactions (Details Narrative) - USD ($)			6 Months Ended	12 Months Ended
	Oct. 29, 2021	Dec. 18, 2013	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Oct. 10, 2023	May 26, 2023
Related Party Transaction [Line Items]
Stock based awards			$ 128,000	$ 178,000
Other assets			$ 1,107,000	2,724,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant			1,720,565
Harmattan Energy Limited [Member]
Related Party Transaction [Line Items]
Equity investment			$ 0	0
Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Description of director owns			(i) 90% of the equity of Soluna Technologies Investment I, LLC, which owns 57.9% of HEL and (ii) 100% of the equity of MJT Park Investors, Inc., which owns 3.1% of HEL, in each case, on a fully diluted basis. Mr. Toporek does not own directly, or indirectly, any equity interest in Tera Joule, LLC, which owns 9.2% of HEL; however, as a result of his 100% ownership of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL.
Interest expense			$ 0	0
Matthew E. Lipman [Member]
Related Party Transaction [Line Items]
Description of director owns			Tera Joule, LLC, which owns 9.2% of HEL; however, as a result of his position as a director and officer of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL. As a result, the approximate dollar value of the amount of Mr. Toporek’s and Mr. Lipman’s interest in the Company’s transactions with HEL for the year ended December 31, 2024 was $0 and $0, respectively.
John Belizaire and John Bottomley [Member]
Related Party Transaction [Line Items]
Description of director owns			In addition, Mr. Belizaire is the beneficial owner of 1,317,567 shares of common stock of HEL and 102,380 Class Seed Preferred shares, which are convertible into 86,763 shares of common stock of HEL. These interests give Mr. Belizaire an ownership of 10.54% in HEL. Mr. Belizaire also owns an interest in HEL indirectly through his 5.0139% interest in Tera Joule, LLC’s 965,945 Class Seed Preferred shares, which are convertible into 818,596 shares of common stock of HEL. Mr. Bottomley is the beneficial owner of 96,189, or approximately 0.72%, of the outstanding shares of common stock of HEL.
Shares converted			1,317,567
John Belizaire and John Bottomley [Member] \| Class Seed Preferred Share [Member]
Related Party Transaction [Line Items]
Shares converted			102,380
Merger Agreement [Member]
Related Party Transaction [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant							59,400
Notes Receivable [Member]
Related Party Transaction [Line Items]
Notes receviable				82,000	$ 31,000
Other assets			$ 97,000	96,000
MEOH Power, Inc. [Member]
Related Party Transaction [Line Items]
Company paid		$ 380,000
Share price		$ 0.07
Promissory note available to convert			$ 394,000	$ 385,000
Soluna Computing Inc [Member]
Related Party Transaction [Line Items]
Payment of related party	$ 725,000
SCI US Holdings LLC [Member]
Related Party Transaction [Line Items]
Shares, Issued						39,600	19,800
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant							59,400
Harmattan Energy Ltd [Member]
Related Party Transaction [Line Items]
Shares converted			86,763
Investment percentage			1.79%	1.79%
Harmattan Energy Ltd [Member] \| Common Stock [Member]
Related Party Transaction [Line Items]
Shares converted			818,596
Tera Joule, LLC [Memebr] \| Class Seed Preferred Share [Member]
Related Party Transaction [Line Items]
Shares converted			965,945