Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands		3 Months Ended							9 Months Ended
	Feb. 28, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue from External Customer [Line Items]
Total segment and consolidated cost of revenues		$ 8,889				$ 4,390			$ 20,068	$ 9,996
General and administrative expenses		5,248				2,723			14,625	11,219
Interest expense		(821)				(495)			(1,694)	(2,355)
(Gain) loss on debt extinguishment and revaluation, net	$ 5,800	1,203				(769)			(7,495)	(2,350)
Loss on sale of fixed assets						(373)			(21)	(404)
Income tax (benefit) expense from operations		547				(569)			1,743	524
Net loss		(8,093)	$ (9,145)	$ (2,544)	$ (4,997)	(6,016)	$ (9,257)	$ (7,432)	(19,782)	(22,705)
(Less) Net loss (income) attributable to non-controlling interest		903				(646)			(3,535)	206
Net loss attributable to Soluna Holdings, Inc.		(7,190)				(6,662)			(23,317)	(22,499)
Depreciation and amortization		2,404				2,379			7,209	7,134
Reportable Subsegments [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		7,525				5,797			29,749	10,948
Total segment and consolidated cost of revenues		8,889				4,390			20,068	9,996
General and administrative expenses		7,652				5,102			21,834	18,353
Impairment on fixed assets						41			130	418
Interest expense		821				495			1,694	2,355
(Gain) loss on debt extinguishment and revaluation, net		(1,203)				769			7,495	2,350
Loss on sale of fixed assets						373			21	404
Other expense, net		6				74			32	301
Income tax (benefit) expense from operations		(547)				569			(1,743)	(524)
Net loss		(8,093)				(6,016)			(19,782)	(22,705)
(Less) Net loss (income) attributable to non-controlling interest		903				(646)			(3,535)	206
Net loss attributable to Soluna Holdings, Inc.		(7,190)				(6,662)			(23,317)	(22,499)
Capital expenditures		3,542				9,639			3,820	12,534
Depreciation and amortization		3,915				3,579			11,750	9,498
Cryptocurrency Mining Revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		2,811				1,786			13,691	5,497
Total segment and consolidated cost of revenues		1,963				1,040			5,687	4,451
Data Hosting Revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		4,271				4,011			14,446	5,451
Total segment and consolidated cost of revenues		2,555				2,150			6,982	3,181
High Performance Computing Service Revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue
Total segment and consolidated cost of revenues		2,859							2,859
Demand Response Service Revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		443							1,612
High-performance computing service revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated cost of revenues		2,859							2,859
Cost of Revenue Depreciation [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated cost of revenues		$ 1,512				$ 1,200			$ 4,540	$ 2,364