Debt (Details Narrative) - USD ($)																			3 Months Ended			9 Months Ended		12 Months Ended
	Jul. 12, 2024	Jun. 20, 2024	May 30, 2024	May 17, 2024	May 16, 2024	Feb. 28, 2024	Feb. 13, 2024	Dec. 07, 2023	Nov. 20, 2023	Sep. 05, 2023	May 11, 2023	Mar. 10, 2023	Feb. 23, 2023	Jan. 01, 2023	Jan. 26, 2022	Dec. 30, 2021	Oct. 25, 2021	Sep. 15, 2021	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Jul. 22, 2024	May 09, 2023	Dec. 21, 2022	Jan. 14, 2022
Debt instrument face value																			$ 25,999,000			$ 25,999,000		$ 19,338,000
Conversion price						$ 3.78
Issuance to purchase of warrants						$ 0.01
Debt face amount																			3,400,000			3,400,000
Debt principal balance outstanding																			$ 3,100,000			3,100,000
Accrued interest												18.00%
Debt default, amount												$ 617,000
Accrued interest paid												$ 617,000
Extension fee											$ 250,000											$ 325,000
Percentage of principal outstanding											14.00%
Floor price description						ATM Floor Price means $10 per share initially, which is reduced to $8 per share six months after the ATM is effective and $6 per share 12 months after the after the effective date of the ATM.
Principal amount						2.00%
Warrants outstanding						850,000													3,222,446			3,222,446
Debt instrument description						For every one $6.00 Repriced Warrant exercised by a Purchaser, such Purchaser shall receive 1.36 new five-year warrants with an exercise price of $0.01, 1.6 new five-year warrants with an exercise price of $4.20, and 1.6 new five-year warrants with an exercise price of $5.70.
Loss on debt extinguishment						$ 5,800,000													$ 1,203,000		$ (769,000)	$ (7,495,000)	$ (2,350,000)
Principal and interest payments																			9,200,000			9,200,000
Long-term debt																			8,100,000			8,100,000			$ 2,160,000
Loss on debt				$ 1,400,000
Prepaid expenses and other current assets																			5,662,000			5,662,000		1,416,000
Other assets																			8,718,000			8,718,000		2,954,000
Warrant liability																						0
Repayments of line of credit																							$ 350,000
NYDIG [Member]
Proceeds from collateralized assets										$ 3,400,000
Gain (loss) on disposition of assets																								251,000
Loss contingency, damages sought, value								$ 10,300,000
Debt, current							$ 9,200,000
Penalty fee							$ 1,000,000.0
Interest Payable																			1,900,000			1,900,000		936,000
Interest expense, debt																			$ 370,000			$ 1,100,000
KeyBank National Association [Member]
Maximum borrowing capacity																		$ 1,000,000.0
Interest rate																		0.75%
Line of credit														$ 350,000
Repayments of line of credit																								350,000
Soluna MC LLC [Member]
Equity interest ownership percentage															100.00%
3.78 Warrants [Member]
Warrants outstanding						320,005
Warrant exercise price decrease						$ 3.78
6.00 Warrants [Member]
Warrants outstanding						478,951
Warrant exercise price decrease						$ 6.00
Amended Class C Warrants [Member]
Exercise of warrants																			529,161			529,161
Issuance to purchase of warrants				$ 4	$ 6
Issuance to purchase of warrants percentage				61.83%
Deemed dividend																						$ 66,000
Noteholders [Member]
Aggregate deposit amount																											$ 950,000
Class A Warrants [Member]
Issuance to purchase of warrants											$ 12.50
Shares new issues											240,000
Class B Warrants [Member]
Issuance to purchase of warrants											$ 20.00
Shares new issues											80,000
Warrant One [Member]
Issuance to purchase of warrants																			$ 0.01			$ 0.01
Warrants issued																						719,658
Warrant Two [Member]
Issuance to purchase of warrants																			4.20			$ 4.20
Warrants issued																						846,657
Warrant Three [Member]
Issuance to purchase of warrants																			$ 5.70			$ 5.70
Warrants issued																						846,657
Holders [Member]
Warrants outstanding																			51,618			51,618
Adjustments warrants																			530,569			530,569
Noteholders [Member]
Warrants outstanding																			51,618			51,618
Warrant repriced price per share																			$ 6.00			$ 6.00
Non Noteholders [Member]
Warrants outstanding																			51,618			51,618
Warrants and rights outstanding																			$ 386,000			$ 386,000
Securities Purchase Agreement [Member] | October Warrants [Member]
Exercise of warrants																	1,776,073
Securities Purchase Agreement [Member] | October Warrants [Member] | Class A Warrant [Member]
Issuance to purchase of warrants																	$ 12.50
Securities Purchase Agreement [Member] | October Warrants [Member] | Class B Warrant [Member]
Issuance to purchase of warrants																	15
Securities Purchase Agreement [Member] | October Warrants [Member] | Class C Warrant [Member]
Issuance to purchase of warrants																	$ 18
Securities Purchase Agreement [Member] | October Secured Notes [Member]
Debt instrument face value																	$ 16,300,000
Aggregate debt amount																	$ 15,000,000
Debt conversion, shares																	1,776,073
Conversion price																	$ 9.18
Third Amendment Agreement [Member]
Prepayment of debt									$ 1,500,000
Debt instrument conversion amount									$ 4,700,000
Debt instrument conversion shares									150,000
Debt instrument conversion price									$ 0.01
Fourth Amendment Agreement [Member]
Gain on revaluation associated with the warrant liability			$ 1,600,000																	$ 1,500,000
Master Agreement [Member]
Debt instrument face value																												$ 4,600,000
Aggregate debt amount															$ 9,800,000
Interest rate																												14.00%
Master Agreement [Member] | NYDIG [Member]
Aggregate debt amount																$ 14,400,000
Master Equipment Finance Agreement [Member]
Proceeds from collateralized assets													$ 3,400,000
Interest payable, current													$ 560,000
Loan Agreement [Member] | DVCC and Navitas West Texas Investments SPV, LLC [Member]
Debt instrument face value																										$ 2,050,000
Interest rate																										15.00%
Interest expense, debt																			21,000			$ 122,000
Debt instrument maturity date																						May 09, 2025
Long term debt, current																			292,000			$ 292,000		1,700,000
Principal and interest payments																			1,400,000			1,400,000		$ 547,000
Equipment Loan Agreement [Member]
Interest rate					15.00%
Debt instrument maturity date					May 16, 2027
Borrowings				$ 720,000	$ 1,000,000.0
Deferred financing costs																									$ 118,000
Prepaid expenses and other current assets																			39,000			39,000
Other assets																			64,000			64,000
Equipment Loan Agreement [Member] | Interest Expense [Member]
Amortization of debt issuance costs																						15,000
Note Purchase Agreement [Member] | Accredited Investor [Member]
Debt instrument face value		$ 12,500,000
Interest rate		9.00%
Debt instrument maturity date		Jun. 20, 2027
Warrant description		As further inducement for the Investor to purchase the Note, Soluna Cloud issued to the Investor a warrant (the “Warrant”) exercisable within three years from June 20, 2024 for a number of shares of common stock of Soluna Cloud equal to the sum of (a) 12.5% of Soluna Cloud’s issued and outstanding common stock as of the date of the Warrant divided by 0.875, plus (b) the percentage of each Qualified Issuance (as defined below) divided by 0.875.
Additional common stock issued		$ 112,500,000
Warrant liability		$ 314,000
Note Purchase Agreement [Member] | New Accredited Investors [Member]
Debt instrument face value	$ 1,250,000
Warrant description	To further incentivize the Additional Investors, Soluna Cloud issued warrants (the “Cloud Additional Warrants”) to each Additional Investor. These Cloud Additional Warrants are exercisable within three years from the effective date of the June SPA Amendment. They allow the purchase of a number of shares of Soluna Cloud common stock equal to 1.25% of Soluna Cloud’s issued and outstanding common stock as of the Cloud Additional Warrant date, divided by 0.9875, plus 1.25% of each Qualified Issuance, divided by 0.9875.
Additional common stock issued	$ 111,250,000
Warrant liability	$ 13,000
June SPA and June SPA Amendment [Member]
Related party debt																			$ 430,000			$ 466,000