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Related Party Transactions (Details Narrative) - USD ($) $ in Thousands			3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 23, 2020	Jan. 13, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Professional fees			$ 7	$ 19	$ 15	$ 77
Payment for investment					$ 118
Investment percentage			20.00%		20.00%
Soluna [Member]
Related Party Transaction [Line Items]
Management fee							$ 65
Investment percentage			1.83%		1.83%
Description of affiliations					Michael Toporek, our Chief Executive Officer and a director, owns (i) 90% of the equity of Soluna Technologies Investment I, LLC, which owns 58.8% of Soluna and (ii) 100% of the equity of MJT Park Investors, Inc., which owns 3.1% of Soluna, 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 8.4% of Soluna; 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 Soluna.
Cost of investment			$ 750		$ 750
Soluna [Member] \| Class A Preferred Shares [Member]
Related Party Transaction [Line Items]
Payment for investment	$ 250	$ 500
Investment shares purchased	79,365	158,730
Soluna [Member] \| Class A Preferred Shares [Member] \| Toporek [Member]
Related Party Transaction [Line Items]
Value of investment			98		98
Soluna [Member] \| Class A Preferred Shares [Member] \| Lipman [Member]
Related Party Transaction [Line Items]
Value of investment			0		0
Soluna [Member] \| Third Operating and Management Agreement [Member]
Related Party Transaction [Line Items]
Management fee					380
Soluna [Member] \| Operating And Management Agreement 2 [Member]
Related Party Transaction [Line Items]
Management fee					100		150
Soluna [Member] \| Operating And Management Agreement 4 [Member]
Related Party Transaction [Line Items]
Management fee							38,000
Soluna [Member] \| Operating And Management Agreement 5 [Member]
Related Party Transaction [Line Items]
Management fee					70
MeOH Power [Member]
Related Party Transaction [Line Items]
Promissory Note available to convert			$ 325		$ 325		$ 321