Concentration of Credit Risk (Details) $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($) customer item	Dec. 31, 2023 customer item
Concentration of Credit Risk
Deposits	$ 5,314
U.S. Government money market fund accounts	$ 3,638
Crypto Asset, Number of Units	2,298
Fair Value	$ 214,633
Customer concentration risk \| Revenue from Contract with Customer Benchmark
Concentration of Credit Risk
Number of customers \| customer	2	2
Customer concentration risk \| Revenue from Contract with Customer Benchmark \| Customer one
Concentration of Credit Risk
Concentration risk percentage	43.10%	36.00%
Customer concentration risk \| Revenue from Contract with Customer Benchmark \| Customer two
Concentration of Credit Risk
Concentration risk percentage	27.60%	34.90%
Customer concentration risk \| Accounts receivable
Concentration of Credit Risk
Number of customers \| customer	3	3
Customer concentration risk \| Accounts receivable \| Customer one
Concentration of Credit Risk
Concentration risk percentage	33.90%	27.50%
Customer concentration risk \| Accounts receivable \| Customer two
Concentration of Credit Risk
Concentration risk percentage	28.70%	27.50%
Customer concentration risk \| Accounts receivable \| Customer three
Concentration of Credit Risk
Concentration risk percentage	14.00%	23.60%
Customer concentration risk \| Accounts payable \| Vendor two
Concentration of Credit Risk
Concentration risk percentage	16.70%
Supplier Concentration Risk \| Accounts payable
Concentration of Credit Risk
Number of vendors \| item	3	2
Supplier Concentration Risk \| Accounts payable \| Vendor one
Concentration of Credit Risk
Concentration risk percentage	29.40%	24.00%
Supplier Concentration Risk \| Accounts payable \| Vendor two
Concentration of Credit Risk
Concentration risk percentage		10.10%
Supplier Concentration Risk \| Accounts payable \| Vendor three
Concentration of Credit Risk
Concentration risk percentage	15.60%
Investment Holding Concentration Risk \| Intangible digital assets
Concentration of Credit Risk
Number Of Providers \| item	2
Investment Holding Concentration Risk \| Intangible digital assets \| Provider One
Concentration of Credit Risk
Concentration risk percentage	60.00%
Investment Holding Concentration Risk \| Intangible digital assets \| Provider Two
Concentration of Credit Risk
Concentration risk percentage	40.00%

Number of major providers of crypto asset holdings in concentration risk.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Fair value of crypto asset. Excludes crypto asset held for platform user.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Number of restricted and unrestricted crypto asset units held. Excludes crypto asset units held for platform user.

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Any certificate of deposit or savings account held by a bank or other financial institution for a short-term specified period of time. Because of their short-term, time deposits are considered highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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