Notes Payable (Details)							1 Months Ended			3 Months Ended				11 Months Ended	12 Months Ended
	Dec. 06, 2023	Sep. 06, 2023	Aug. 23, 2023	Aug. 07, 2023 USD ($)	May 04, 2023 shares	Dec. 08, 2022 USD ($) TradingDay $ / shares shares	Oct. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Apr. 30, 2018 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2024 EUR (€)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 EUR (€)	Dec. 08, 2022 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 31, 2023 USD ($)	Jul. 31, 2019 USD ($)	Jun. 01, 2019 USD ($)	Apr. 01, 2018 USD ($)
Debt Instrument [Line Items]
Prepaid Expense										$ 167,000							$ 261,000
Long-Term Debt										34,845,000
Cash and cash equivalents										24,537,000		$ 40,936,000					15,624,000
Number of private placement warrants agreed to purchase | shares					7,000,000
iHeart Media Note Payable [Member]
Debt Instrument [Line Items]
Interest rate per month																				1.50%
Maximum increase in interest rate of the event									8.00%
Debt Instrument, Term									5 years
Proceeds from Convertible Debt									$ 50,000
Interest expense										1,000		1,000
Debt instrument face value						$ 400,000								$ 400,000
Debt Instrument, Increase, Accrued Interest						$ 12,000
Exchanged shares of common stock | shares						32,329								32,329
iHeart Media Note Payable [Member] | Series D Preferred Stock [Member]
Debt Instrument [Line Items]
Debt instrument face value							$ 2,000,000	$ 1,100,000
Debt Instrument, Increase, Accrued Interest							$ 54,000	$ 16,000
Debt Conversion, Converted Instrument, Shares Issued | shares							528,195	112,718
iHeart Media Note Payable [Member] | Legacy Series E Preferred Stock [Member]
Debt Instrument [Line Items]
Debt Conversion, Converted Instrument, Shares Issued | shares						100,951
Prêt Garanti par l'État Loan [member]
Debt Instrument [Line Items]
Interest expense										9,600	€ 8,900	$ 19,800	€ 18,300
Mudrick Convertible Notes [Member]
Debt Instrument [Line Items]
Proceeds from Convertible Debt															$ 169,800,000
Debt instrument face value						$ 175,000,000				$ 1,000				$ 175,000,000
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						86.96
Debt instrument additional effective rate of interest						2.00%								2.00%
Debt instrument conversion price | $ / shares						$ 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
Minimum number of warrants obligated to issue as a result of adjustment to warrants\ | shares						1,750,000								1,750,000
Maximum number of warrants obligated to issue as a result of adjustment to warrants | shares						7,000,000								7,000,000
Backstop fee															$ 5,200,000
Issuance of common stock (in Shares) | shares															266,156
Interest percentage discription										one half of one percent (0.50%)	one half of one percent (0.50%)
Interest percentage	0.50%	0.50%	0.50%
Mudrick Convertible Notes [Member] | Common Stock [Member]
Debt Instrument [Line Items]
Debt instrument face value						$ 1,000								$ 1,000
Mudrick Convertible Notes Paid in Cash [Member]
Debt Instrument [Line Items]
Interest rate per month						8.00%								8.00%
Mudrick Convertible Notes Paid in Kind [Member]
Debt Instrument [Line Items]
Interest rate per month						9.50%								9.50%
Mudrick Bridge Note [Member]
Debt Instrument [Line Items]
Interest rate per month				15.00%
Debt instrument face value				$ 3,000,000
Debt Instrument, Maturity Date				Sep. 07, 2023
First Ninety Days [Member] | Mudrick Convertible Notes [Member]
Debt Instrument [Line Items]
Interest percentage discription										one quarter of one percent (0.25%)	one quarter of one percent (0.25%)
Interest percentage	0.25%	0.25%	0.25%
First Ninty First Day Through One Hundred And Eightieth Day [Member] | Mudrick Convertible Notes [Member]
Debt Instrument [Line Items]
Interest percentage discription										one half of one percent (0.50%)	one half of one percent (0.50%)
Interest percentage	0.50%	0.50%	0.50%
Maximum Additional Promotion Commitment [Member] | Within 18 Months From The Effective Date [Member] | iHeart Media Note Payable [Member]
Debt Instrument [Line Items]
Debt instrument face value																				$ 11,500,000
Percentage of commitment value in cash																				22.50%
Minimum Commitment Tranche [Member] | iHeart Media Note Payable [Member]
Debt Instrument [Line Items]
Debt instrument face value																		$ 400,000	$ 1,500,000
Prepaid Expense																			$ 500,000
Long-Term Debt										$ 99,000							$ 99,000
Minimum Commitment Tranche [Member] | Advertising [Member] | iHeart Media Note Payable [Member]
Debt Instrument [Line Items]
Debt instrument, amount utilized										$ 3,300,000
Initial Promotion Commitment Tranche [Member] | iHeart Media Note Payable [Member]
Debt Instrument [Line Items]
Proceeds from Convertible Debt									1,500,000
Minimum commitment tranche																				$ 3,500,000
Prepaid Expense																				600,000
Debt discount																				49,000
Amortization of Debt Discount (Premium)																$ 33,000
Additional Promotion Commitment Tranche [Member] | Within 18 Months From The Effective Date [Member] | iHeart Media Note Payable [Member]
Debt Instrument [Line Items]
Proceeds from Convertible Debt									$ 2,000,000
Minimum commitment tranche																				3,500,000
Prepaid Expense																				$ 500,000
Minimum [Member] | Mudrick Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument conversion price | $ / shares						$ 9.21								$ 9.21