Related Party Transactions (Details Narrative) - USD ($) $ in Thousands				3 Months Ended		6 Months Ended		12 Months Ended
	Oct. 29, 2021	Mar. 23, 2020	Jan. 13, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Mar. 31, 2021
Related Party Transaction [Line Items]
Cash Paid	$ 725,000							$ 245
Professional fees				$ 1	$ 7	$ 2	$ 15
Payments to Acquire Investments						$ 237
Investment percentage				20.00%		20.00%
Payments To Acquire Investments1						$ 500
Chief Executive Officer [Member] | Michael Toporek [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.
Chief Executive Officer [Member] | Matthew E Lipman [Member]
Related Party Transaction [Line Items]
Description Of Director Owns						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 three and six months ended June 30, 2022 was $0 and $0.
Chief Executive Officer [Member] | Mr Belizaire [Member]
Related Party Transaction [Line Items]
Description Of Director Owns						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.
Harmattan Energy Ltd [Member]
Related Party Transaction [Line Items]
Payments to Acquire Investments						$ 50
Soluna [Member]
Related Party Transaction [Line Items]
Cash Paid						65,000	$ 350,000
Acquire additional assets						112
Description Of Agreement			Technologies Investment I, LLC, a Delaware limited liability company that owns, on a fully diluted basis, 57.9%
Soluna [Member] | Class A Preferred Shares [Member]
Related Party Transaction [Line Items]
Payments to Acquire Investments		$ 250
Investment Shares Purchased			158,730,000
Soluna [Member] | M E O H Power Inc [Member]
Related Party Transaction [Line Items]
Cash Paid						380
Soluna [Member] | Operating And Management Agreement3 [Member]
Related Party Transaction [Line Items]
Cash Paid						544		$ 221
Me O H Power [Member]
Related Party Transaction [Line Items]
Promissory note available to convert				$ 334		334			$ 329
H E L [Member]
Related Party Transaction [Line Items]
Payments to Acquire Investments						$ 750
Investment percentage				1.79%		1.79%