Related Party Transactions (Details Narrative) - USD ($)			3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 29, 2021	Dec. 18, 2013	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Oct. 10, 2023	May 26, 2023
Related Party Transaction [Line Items]
Stock based awards					$ 109,000		$ 110,000
Notes receviable			$ 33,000		33,000		446,000
Other assets			$ 8,718,000		$ 8,718,000		2,954,000
Merger shares issued			456,707		456,707
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 nine months ended September 30, 2024 was $0 and $0.
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 of 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]
Merger shares issued									59,400
Notes Receivable [Member]
Related Party Transaction [Line Items]
Notes receviable			$ 13,000		$ 13,000		13,000
Other assets			96,000		96,000		97,000
MeOH Power, Inc. [Member]
Related Party Transaction [Line Items]
Company paid		$ 380,000
Share price		$ 0.07
Promissory note available to convert					379,000		$ 363,000
Couch White, LLP [Member]
Related Party Transaction [Line Items]
Legal services			$ 1,000	$ 1,000	$ 2,000	$ 2,000
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 for merger agreement								39,600	19,800
Merger shares issued									59,400
Harmattan Energy Ltd [Member]
Related Party Transaction [Line Items]
Shares converted					86,763
Investment percentage			1.79%		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