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Class of warrants or rights warrants issued during the period units .

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Debt instrument additional effective rate of interest.

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Global market capitalization amount.

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Lease partial termination fee.

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Lessee operating lease termination date.

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Minimum required cash and cash equivalents per indenture governing.

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Outstanding fees paid.

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Payment of additional interest rate.

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Face (par) amount of debt instrument at time of issuance.

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Notes Payable (Details)										3 Months Ended				9 Months Ended				11 Months Ended	12 Months Ended
Notes Payable (Details)	Aug. 19, 2024 USD ($) $ / shares shares	Jul. 09, 2024 USD ($) TradingDay	Jun. 15, 2024	May 22, 2024 USD ($)	Dec. 06, 2023	Sep. 08, 2023 USD ($)	Aug. 07, 2023 USD ($)	May 04, 2023 shares	Dec. 08, 2022 USD ($) TradingDay $ / shares shares	Sep. 30, 2024 USD ($)	Sep. 30, 2024 EUR (€)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 EUR (€)	Sep. 30, 2024 USD ($)	Sep. 30, 2024 EUR (€)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 EUR (€)	Dec. 08, 2022 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares	Sep. 30, 2024 EUR (€)	May 10, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)
Debt Instrument [Line Items]
Prepaid Expense																						$ 261,000
Trading days \| TradingDay		30
Gain on Lease Termination				$ 2,100,000										$ (2,856,000)
Lease partial termination fee				$ 1,000,000
Long-Term Debt										$ 75,347,000				75,347,000
Number of private placement warrants agreed to purchase \| shares								7,000,000
iHeart Media Note Payable [Member]
Debt Instrument [Line Items]
Outstanding fees paid																					$ 500,000
Prêt Garanti par l'État Loan [member]
Debt Instrument [Line Items]
Interest expense										31,000	€ 27,700	$ 11,000	€ 10,400	80,200	€ 71,600	$ 42,200	€ 39,900
Current portion of long term debt										1,000,000				1,000,000						€ 900,000
Non current portion of long term debt										$ 3,500,000				$ 3,500,000						€ 3,100,000
Mudrick Bridge Note [Member]
Debt Instrument [Line Items]
Interest rate per month							15.00%
Notes issued							$ 3,000,000
Interest rate							15.00%
Debt Instrument, Maturity Date							Sep. 07, 2023
Mudrick Super Priority Note [Member]
Debt Instrument [Line Items]
Interest rate per month						15.00%
Notes issued						$ 15,040,685
Interest rate						15.00%
Debt instrument additional interest rate to be paid in case of default						2.00%
Debt Instrument, Maturity Date						Aug. 07, 2024
Mudrick Convertible Notes [Member]
Debt Instrument [Line Items]
Proceeds from Convertible Debt																			$ 169,800,000
Notes issued									$ 175,000,000									$ 175,000,000					$ 1,000
Minimum required cash and cash equivalents per indenture governing																							$ 10,000,000
Interest percentage description														one half	one half
Interest percentage					(0.50%)
Debt instrument, Interest rate terms														(a) one quarter of one percent (0.25%) of the principal amount for the first ninety (90) days during which the event of default continues, and, thereafter, (b) one half of one percent (0.50%) of the principal amount for the ninety first (91st) through the one hundred and eightieth (180th) day during which the event of default continues, provided, however, that in no event will any such special interest accrue on any day at a combined rate per annum that exceeds one half	(a) one quarter of one percent (0.25%) of the principal amount for the first ninety (90) days during which the event of default continues, and, thereafter, (b) one half of one percent (0.50%) of the principal amount for the ninety first (91st) through the one hundred and eightieth (180th) day during which the event of default continues, provided, however, that in no event will any such special interest accrue on any day at a combined rate per annum that exceeds one half
Debt Instrument, Interest Rate, Basis for Effective Rate														one half	one half
Payment of additional interest rate			20.00%
Debt Instrument, Maturity Date									Dec. 08, 2027
Class of warrants or rights warrants issued during the period units \| shares								7,000,000
Debt Conversion, Converted Instrument, Shares Issued \| shares	4,000								86.96
Debt instrument additional effective rate of interest									2.00%									2.00%
Debt instrument conversion price \| $ / shares	$ 0.25								$ 11.5									$ 11.5
Conversion price average daily volume-weighted average trading price									115.00%									115.00%
Common stock trading days \| TradingDay									90
Debt instrument frequency of periodic payment																			semi-annually
Debt Instrument, Date of First Required Payment																		Jun. 15, 2023
Debt instrument payment terms																			The Convertible Notes accrue interest payable semi-annually in arrears on December 15 and June 15 of each year, beginning on June 15, 2023, at a rate of 8.00% per annum (if paid in cash) or 9.50% per annum (if paid in-kind).
Maturity date																			December 8, 2027, unless earlier converted, redeemed or repurchased.
Private placement warrant price (in Dollars per share) \| $ / shares									$ 11.5									$ 11.5
Class of warrants or rights warrants issued during the period units \| shares								7,000,000
Minimum number of warrants obligated to issue as a result of adjustment to warrants\ \| shares									7,000,000									7,000,000
Maximum number of warrants obligated to issue as a result of adjustment to warrants \| shares									1,750,000									1,750,000
Backstop fee																			$ 5,200,000
Issuance of common stock (in Shares) \| shares																			266,156
Mudrick Convertible Notes [Member] \| First Ninety (90) Days [Member]
Debt Instrument [Line Items]
Interest percentage description														one quarter of one percent	one quarter of one percent
Interest percentage					(0.25%)
Debt Instrument, Interest Rate, Basis for Effective Rate														one quarter of one percent	one quarter of one percent
Mudrick Convertible Notes [Member] \| First (91st) Through One Hundred and Eightieth (180th) Day [Member]
Debt Instrument [Line Items]
Interest percentage description														one half of one percent	one half of one percent
Interest percentage					0.50%
Debt Instrument, Interest Rate, Basis for Effective Rate														one half of one percent	one half of one percent
Mudrick Convertible Notes [Member] \| Common Stock [Member]
Debt Instrument [Line Items]
Notes issued	$ 1,000								$ 1,000									$ 1,000
Mudrick Convertible Notes Paid in Cash [Member]
Debt Instrument [Line Items]
Interest rate per month									8.00%									8.00%
Interest rate									8.00%									8.00%
Mudrick Convertible Notes Paid in Kind [Member]
Debt Instrument [Line Items]
Interest rate per month									9.50%									9.50%
Interest rate									9.50%									9.50%
Green St. Lease Promissory Note [Member]
Debt Instrument [Line Items]
Interest rate per month				6.00%
Lease termination date				June 1, 2024
Lease partial termination fee				$ 1,100,000
Interest rate				6.00%
Debt Instrument, Maturity Date				May 22, 2026
Minimum [Member]
Debt Instrument [Line Items]
Average global market capitalization amount		$ 15,000,000
Minimum [Member] \| Mudrick Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument conversion price \| $ / shares									$ 9.21									$ 9.21