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Investments, Debt and Equity Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Securities, Available-for-Sale [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | $ 31,212 | $ 48,254
Available-for-sale - maturities within one year, Gross unrealized gains | 19 | 37
Available-for-sale - matures within one year, Gross unrealized losses | (8) | (16)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 31,223 | 48,275
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 18,004 | 3,379
Available-for-sale - matures after one year, Gross unrealized losses | 0 | 0
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 17,980 | 3,377
Available-for-sale - matures after one year, Gross unrealized gains | 24 | 2
Debt Securities, Available-for-Sale | 49,227 | 51,654
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax | (8) | (16)
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax | 43 | 39
Debt Securities, Available-for-Sale, Amortized Cost | 49,192 | 51,631
Corporate Bond Securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 14,657 | 27,301
Available-for-sale - maturities within one year, Gross unrealized gains | 8 | 16
Available-for-sale - matures within one year, Gross unrealized losses | (5) | (9)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 14,660 | 27,308
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 12,988 | 2,423
Available-for-sale - matures after one year, Gross unrealized losses | 0 | 0
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 12,975 | 2,423
Available-for-sale - matures after one year, Gross unrealized gains | 13 | 0
US Treasury Securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 10,921 | 16,938
Available-for-sale - maturities within one year, Gross unrealized gains | 10 | 20
Available-for-sale - matures within one year, Gross unrealized losses | (1) | (1)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 10,930 | 16,957
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 3,013 | 956
Available-for-sale - matures after one year, Gross unrealized losses | 0 | 0
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 3,002 | 954
Available-for-sale - matures after one year, Gross unrealized gains | 11 | 2
Commercial Paper |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 3,743 | 1,945
Available-for-sale - maturities within one year, Gross unrealized gains | 0 | 0
Available-for-sale - matures within one year, Gross unrealized losses | (1) | (4)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 3,742 | 1,941
Agency Securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 1,891 | 2,070
Available-for-sale - maturities within one year, Gross unrealized gains | 1 | 1
Available-for-sale - matures within one year, Gross unrealized losses | (1) | (2)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 1,891 | $ 2,069
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 2,003 |
Available-for-sale - matures after one year, Gross unrealized losses | 0 |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five | 2,003 |
Available-for-sale - matures after one year, Gross unrealized gains | $ 0 |

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