Promissory Notes - Narrative (Details) $ / shares in Units, shares in Millions						3 Months Ended			9 Months Ended		12 Months Ended
	Oct. 25, 2021 USD ($) $ / shares	Nov. 10, 2020 installment	May 13, 2020 USD ($) installment	May 01, 2020 USD ($) installment	Apr. 10, 2020 USD ($)	Sep. 30, 2022 USD ($) instrument	Dec. 31, 2021 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)	Sep. 30, 2022 USD ($) installment instrument shares	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) $ / shares shares	Aug. 29, 2022 $ / shares	Jun. 30, 2020 lease
Debt Instrument [Line Items]
Weighted average interest rate						3.80%	4.00%		3.80%		4.00%
Principal Amount						$ 13,233,000	$ 57,811,000		$ 13,233,000		$ 57,811,000
Interest rate in event of default						18.00%			18.00%
Shares issued upon conversion of debt (in shares) | shares											45.9
Unpaid consideration									$ 0	$ 220,000,000
Aggregate outstanding unpaid balance						$ 13,233,000	58,121,000		13,233,000		$ 58,121,000
Payable due beyond one year						1,559,000	0		1,559,000		0
Operating lease liability						16,686,000			16,686,000
Terminated And Vacated Lease
Debt Instrument [Line Items]
Number of leases | lease													1
Convertible Debenture | YA II PN, Ltd
Debt Instrument [Line Items]
Conversion price (in dollars per share) | $ / shares												$ 1.50
Convertible Debenture | Convertible Debt | YA II PN, Ltd
Debt Instrument [Line Items]
Principal Amount	$ 75,000,000
Proceeds from notes payable	$ 75,000,000
Interest rate	4.00%
Interest rate in event of default	18.00%
Conversion price (in dollars per share) | $ / shares	$ 1.88
Redemption of unpaid principal per month	$ 8,300,000
Principal and accrued and unpaid interest											17,500,000
Convertible Debenture Due October 2022 - YA II PN
Debt Instrument [Line Items]
Principal and accrued and unpaid interest							$ 17,600,000		$ 7,500,000
Shares issued upon conversion of debt (in shares) | shares							9.4		20.6
Interest expense						200,000	$ 400,000		$ 1,200,000
Small Business Association Paycheck Protection Program
Debt Instrument [Line Items]
Principal Amount						242,000	311,000		242,000		311,000
Aggregate outstanding unpaid balance						$ 242,000	312,000		$ 242,000		312,000
Interest rate						1.00%			1.00%
Small Business Association Paycheck Protection Program | Unsecured Debt
Debt Instrument [Line Items]
Interest rate					1.00%
Interest expense									$ 636	$ 2,038
Unpaid consideration					$ 300,000
Debt instruments, number of installments | installment		18
Debt instrument, installment payable					$ 18,993
Repayments of debt						$ 23,756			71,726		31,674
Timios notes payable
Debt Instrument [Line Items]
Principal Amount						$ 491,000	0		$ 491,000		0
Interest rate						5.49%			5.49%
Debt instruments, number of installments | installment									11
Debt instrument, installment payable						$ 50,320			$ 50,320
Notes payable						600,000			600,000
Aggregate outstanding unpaid balance						$ 491,000	0		$ 491,000		0
Interest rate						549.00%			549.00%
Energica lending arrangements
Debt Instrument [Line Items]
Weighted average interest rate						3.10%			3.10%
Principal Amount						$ 3,250,000	0		$ 3,250,000		0
Number of instruments | instrument						11			11
Aggregate outstanding unpaid balance						$ 3,250,000	0		$ 3,250,000		0
Outstanding unpaid balance						500,000			500,000
Payable due within one year						1,700,000			1,700,000
Payable due beyond one year						$ 1,600,000			$ 1,600,000
Energica lending arrangements | Minimum
Debt Instrument [Line Items]
Interest rate						0.06%			0.06%
Installment term									8 months
Energica lending arrangements | Maximum
Debt Instrument [Line Items]
Interest rate						5.70%			5.70%
Installment term									51 months
YA II PN Note 4 | Convertible Debt
Debt Instrument [Line Items]
Principal Amount							$ 80,000,000				$ 80,000,000
Interest rate							4.00%				4.00%
Conversion price (in dollars per share) | $ / shares							$ 4.95				$ 4.95
Grapevine Logic, Inc. ("Grapevine") | Small Business Association Paycheck Protection Program | Unsecured Debt
Debt Instrument [Line Items]
Interest rate				1.00%
Unpaid consideration				$ 100,000
Debt instruments, number of installments | installment				18
Debt instrument, installment payable				$ 7,000
Delaware Board Of Trade Holdings Inc | Vendor Notes Payable
Debt Instrument [Line Items]
Interest rate			0.25%					4.00%
Interest expense								$ 100,000
Debt instruments, number of installments | installment			2
Debt instrument, installment payable			$ 30,000
Initial executed an unsecured promissory note			30,000
Unsecured promissory note			$ 60,000
Operating lease liability								$ 900,000