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Fixed Assets, Net - Leases (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		12 Months Ended
	Oct. 31, 2024	Jul. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Leases
Increase (decrease) in operating lease right of use asset					$ 32
Operating lease cost			$ 24	$ 24
CHINA
Leases
Renewal option term		13 months
Short term monthly rent expense		$ 3
Seattle and Tulsa
Leases
Short term monthly rent expense	$ 2
Agreement expiration term (in years)	12 months
Short term lease expense			$ 6	$ 5
Annual rent expense, increase (in percent)			2.00%
Monthly rent expense			$ 10
Minimum | Seattle and Tulsa
Leases
Remaining term (in years)	12 months
Maximum | Seattle and Tulsa
Leases
Remaining term (in years)	3 years

X

- Definition

Amount of increase (decrease) in operating lease, right of use assets.

+ References

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- Definition

Represents monthly rent expense. Excludes triple net operating costs.

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- Definition

Represents percentage of Annual rent expense increase. Excludes triple net operating costs.

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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
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
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- Definition

Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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