Debt (Details) - Coinshares International Limited [Member] SFr in Thousands	12 Months Ended
Dec. 31, 2025 USD ($)	Dec. 31, 2025 CHF (SFr)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt (Details) [Line Items]
Loan balance	$ 28,100,000		$ 24,700,000	$ 29,500,000
Accrued interest	$ 57,000		$ 32,000	$ 51,000
Percentage of interest	0.00%	0.00%
Accrue interest rate	0.00%	0.00%
Percentage of repayment	3.50%	3.50%
Percentage of outstanding loan	2.40%	2.40%	2.90%	4.20%
Interest expense	$ 700,000		$ 700,000	$ 700,000
Loan outstanding	3,200,000
Accrued interest			0
Market value	$ 136,000,000		$ 145,800,000
Percentage of outstanding loan balance	10.00%	10.00%
Loan percentage	50.00%	50.00%
Legal fee	$ 27,000	SFr 25
Loan [Member]
Debt (Details) [Line Items]
Accrued interest	$ 29,000
Maximum [Member]
Debt (Details) [Line Items]
Percentage of interest	2.25%	2.25%
Loan percentage	30.00%	30.00%
Minimum [Member]
Debt (Details) [Line Items]
Percentage of interest	0.20%	0.20%
Loan percentage	20.00%	20.00%

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Increase for accrued, but unpaid interest on the debt instrument for the period.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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Average amount outstanding of long-term debt.

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Amount of gain (loss) from (increase) decrease in fair value of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. Excludes change attributable to instrument-specific credit risk.

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