Goodwill and Intangible Assets - Amortizing and Indefinite-lived Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended					6 Months Ended
	Jan. 15, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2019	Jun. 30, 2022	Jun. 30, 2021	Jun. 11, 2021	Apr. 20, 2021	Mar. 31, 2021	Jan. 08, 2021	Dec. 31, 2019
Amortizing Intangible Assets
Gross Carrying Amount​		$ 103,654	$ 98,775				$ 103,654
Accumulated Amortization		(6,129)	(6,142)				(6,129)
Impairment Loss		(13,683)	(50,618)				(13,683)
Total		83,842	42,015				83,842
Total intangible assets
Gross Carrying Amount​		104,185	99,306				104,185
Impairment Loss		(13,689)					(13,689)
Net Balance		84,367	$ 42,546				84,367
Impairment loss of intangible assets		$ 572		$ 0			$ 653	$ 0
Grapevine Logic, Inc. ("Grapevine")
Total intangible assets
Percentage of ownership interest				100.00%				100.00%		100.00%
DBOT
Total intangible assets
Percentage of ownership interest acquired						99.00%
Finite-lived intangible assets acquired						$ 8,300
Tree Technologies
Total intangible assets
Percentage of ownership interest acquired			51.00%										51.00%
Fair value of previously held interest			$ 11,300
Timios
Total intangible assets
Percentage of ownership interest acquired												100.00%
WAVE
Total intangible assets
Percentage of ownership interest acquired	100.00%			100.00%				100.00%			100.00%
Fair value of previously held interest	$ 28,616
Solectrac
Total intangible assets
Percentage of ownership interest acquired									78.60%
Percent of battery power		100.00%					100.00%
Timios Title plant
Indefinite lived intangible assets
Gross Carrying Amount​		$ 500	500				$ 500
Net Balance		500	500				500
Website name
Indefinite lived intangible assets
Gross Carrying Amount​		25	25				25
Net Balance		25	25				25
Title License
Indefinite lived intangible assets
Gross Carrying Amount​		6	6				6
Impairment Loss		(6)					(6)
Net Balance		0	6				0
Patent
Indefinite lived intangible assets
Gross Carrying Amount​		0	0				0
Net Balance		0	0				$ 0
Continuing membership agreement
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							17 years
Gross Carrying Amount​		1,179	1,179				$ 1,179
Accumulated Amortization		(665)	(649)				(665)
Impairment Loss		0	0				0
Total		514	530				$ 514
Continuing membership agreement | DBOT
Total intangible assets
Impairment loss of intangible assets						30
Patents, trademarks and brands
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							38 years 2 months 12 days
Gross Carrying Amount​		22,509	39,820				$ 22,509
Accumulated Amortization		(1,050)	(2,715)				(1,050)
Impairment Loss		(1,132)	(30,492)				(1,132)
Total		20,327	6,613				$ 20,327
Customer relationships
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							14 years 2 months 12 days
Gross Carrying Amount​		13,558					$ 13,558
Accumulated Amortization		(339)					(339)
Impairment Loss		0	0				0
Total		13,219					$ 13,219
Land use rights
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							96 years 6 months
Gross Carrying Amount​		25,672	27,102				$ 25,672
Accumulated Amortization		(519)	(411)				(519)
Impairment Loss		0	0				0
Total		25,153	26,691				$ 25,153
Licenses
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							13 years 6 months
Gross Carrying Amount​		1,000	1,000				$ 1,000
Accumulated Amortization		(99)	(65)				(99)
Impairment Loss		0	0				0
Total		901	935				$ 901
Lender relationships
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							5 years 6 months
Gross Carrying Amount​		16,600	16,600				$ 16,600
Accumulated Amortization		(1,836)	(1,638)				(1,836)
Impairment Loss		(12,551)	(12,550)				(12,551)
Total		2,213	2,412				$ 2,213
Internally developed software
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							2 years 1 month 6 days
Gross Carrying Amount​		765	452				$ 765
Accumulated Amortization		(149)	(76)				(149)
Impairment Loss		0	0				0
Total		616	376				$ 616
Software
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							11 years 8 months 12 days
Gross Carrying Amount​		4,491	4,492				$ 4,491
Accumulated Amortization		(736)	(178)				(736)
Impairment Loss		0	0				0
Total		3,755	4,314				$ 3,755
Non-compete
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							0 years
Gross Carrying Amount​		0	520				$ 0
Accumulated Amortization		0	(57)				0
Impairment Loss		0	(463)				0
Total		0	0				$ 0
Technology
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							7 years 8 months 12 days
Gross Carrying Amount​		17,730	7,460				$ 17,730
Accumulated Amortization		(692)	(347)				(692)
Impairment Loss		0	(7,113)				0
Total		17,038	0				$ 17,038
Assembled workforce
Amortizing Intangible Assets
Weighted Average Remaining Useful Life (in years)							1 year 4 months 24 days
Gross Carrying Amount​		150	150				$ 150
Accumulated Amortization		(44)	(6)				(44)
Impairment Loss		0	0				0
Total		$ 106	$ 144				$ 106
Customer Lists
Total intangible assets
Fair value of previously held interest						600
Impairment loss of intangible assets						$ 7,100
Marketing and distribution agreement
Total intangible assets
Impairment loss of intangible assets					$ 12,500