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Schedule of Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
ETH staking rewards			$ 1,475
Rental income			415	704
Merchant banking advisory fees			523	75
Total revenue			2,413	779
Compensation costs			(1,894)	(783)
Professional fees			(1,182)	(400)
Bank and custodial fees			(92)
Realized loss on digital assets			(5,815)
Unrealized measurement of fair value of ETH digital assets			(38,327)
Loss on equity holdings			(5,503)	(14,675)
Depreciation and amortization			(291)	(402)
Other operating expenses			(103)	(261)
Interest expense, net			(113)	(225)
Segment loss before taxes			(50,907)	(17,442)
Corporate and other non-segment operating expenses			(10,957)	(7,552)
Stock-based compensation			(7,760)	(1,618)
Foreign currency transaction gain			1,936
Interest expense, net			(19)	(78)
Loss from continuing operations before taxes			(67,707)	(24,369)
Impairment	$ (2,100)	$ (1,400)	(100)	(1,475)
Bargain purchase on acquisition				2,321
Digital Assets [Member]
Segment Reporting Information [Line Items]
ETH staking rewards			1,475
Rental income
Merchant banking advisory fees
Total revenue			1,475
Compensation costs			(655)
Professional fees			(574)
Bank and custodial fees			(90)
Realized loss on digital assets			(5,815)
Unrealized measurement of fair value of ETH digital assets			(38,327)
Loss on equity holdings
Depreciation and amortization
Other operating expenses			(11)
Interest expense, net
Segment loss before taxes			(43,997)
Impairment
Merchant Banking [Member]
Segment Reporting Information [Line Items]
ETH staking rewards
Rental income
Merchant banking advisory fees			523	75
Total revenue			523	75
Compensation costs			(1,239)	(679)
Professional fees			(608)	(400)
Bank and custodial fees			(2)
Realized loss on digital assets
Unrealized measurement of fair value of ETH digital assets
Loss on equity holdings			(5,503)	(14,675)
Depreciation and amortization				(18)
Other operating expenses			(92)	(91)
Interest expense, net
Segment loss before taxes			(6,921)	(15,788)
Impairment
Other Operating Segment [Member]
Segment Reporting Information [Line Items]
ETH staking rewards
Rental income			415	704
Merchant banking advisory fees
Total revenue			415	704
Compensation costs				(104)
Professional fees
Bank and custodial fees
Realized loss on digital assets
Unrealized measurement of fair value of ETH digital assets
Loss on equity holdings
Depreciation and amortization			(291)	(384)
Other operating expenses				(170)
Interest expense, net			(113)	(225)
Segment loss before taxes			$ 11	(1,654)
Impairment				$ (1,475)