Fair Value Measurements - Schedule of Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Assets:
Investments in securities	$ 8,021	$ 65,541	$ 71,230
Assets	9,525	68,251	72,117
Liabilities:
Liabilities	2,445	3,014	2,508
Public Warrants
Liabilities:
Warrant liabilities	252	454	1,555
Private Placement Warrants
Liabilities:
Warrant liabilities	433	780	953
Series A Penny Warrants
Liabilities:
Warrant liabilities	1,760	1,780
Level 1
Assets:
Investments in securities	0	849	849
Assets	1,504	3,559	1,736
Liabilities:
Liabilities	252	454	1,555
Level 1 \| Public Warrants
Liabilities:
Warrant liabilities	252	454	1,555
Level 1 \| Private Placement Warrants
Liabilities:
Warrant liabilities	0	0	0
Level 1 \| Series A Penny Warrants
Liabilities:
Warrant liabilities	0	0
Level 2
Assets:
Investments in securities	8,021	64,692	70,381
Assets	8,021	64,692	70,381
Liabilities:
Liabilities	433	780	953
Level 2 \| Public Warrants
Liabilities:
Warrant liabilities	0	0	0
Level 2 \| Private Placement Warrants
Liabilities:
Warrant liabilities	433	780	953
Level 2 \| Series A Penny Warrants
Liabilities:
Warrant liabilities	0	0
Level 3
Assets:
Investments in securities	0	0	0
Assets	0	0	0
Liabilities:
Liabilities	1,760	1,780	0
Level 3 \| Public Warrants
Liabilities:
Warrant liabilities	0	0	0
Level 3 \| Private Placement Warrants
Liabilities:
Warrant liabilities	0	0	0
Level 3 \| Series A Penny Warrants
Liabilities:
Warrant liabilities	1,760	1,780
Money market mutual funds
Assets:
Money market mutual funds	1,504	2,710	887
Money market mutual funds \| Level 1
Assets:
Money market mutual funds	1,504	2,710	887
Money market mutual funds \| Level 2
Assets:
Money market mutual funds	0	0	0
Money market mutual funds \| Level 3
Assets:
Money market mutual funds	$ 0	$ 0	$ 0

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Fair value portion of asset recognized for present right to economic benefit.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, 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.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value of financial and nonfinancial obligations.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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