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Marketable Securities (Tables) | 12 Months Ended
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Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-sale and Held-to-maturity Securities | The following is a summary of available-for-sale securities, which are carried at fair value, as of December 31, 2023 and 2024 (in thousands):
| Amortized Cost |  | Gross Unrealized Gain |  | Gross Unrealized (Losses) |  | Estimated Fair Value
Balance as of December 31, 2023 |  |  |  |  |  |  |
Tax-exempt municipal securities | $ | 10,055 |  |  | $ | 2 |  |  | $ | (144) |  |  | $ | 9,913 |
Corporate debt securities | 3,202 |  |  | — |  |  | (79) |  |  | 3,123 |
Total | $ | 13,257 |  |  | $ | 2 |  |  | $ | (223) |  |  | $ | 13,036 |
Balance as of December 31, 2024 |  |  |  |  |  |  |
Corporate debt securities | $ | 500 |  |  | $ | — |  |  | $ | (1) |  |  | $ | 499 |
Total | $ | 500 |  |  | $ | — |  |  | $ | (1) |  |  | $ | 499 |
The following is a summary of held-to-maturity securities, which are carried at amortized cost, as of December 31, 2023 and 2024 (in thousands):
| Amortized Cost |  | Gross Unrealized Gain |  | Gross Unrealized (Losses) |  | Estimated Fair Value
Balance as of December 31, 2023 |  |  |  |  |  |  |
Term deposits | $ | 27,175 |  |  | $ | — |  |  | $ | — |  |  | $ | 27,175 |
Total | $ | 27,175 |  |  | $ | — |  |  | $ | — |  |  | $ | 27,175 |
Balance as of December 31, 2024 |  |  |  |  |  |  |
Term deposits | $ | 21,653 |  |  | $ | — |  |  | $ | — |  |  | $ | 21,653 |
U.S. treasury securities | 19,778 |  |  | 18 |  |  | — |  |  | 19,796 |
Corporate debt securities | 20,000 |  |  | — |  |  | (26) |  |  | 19,974 |
Total | $ | 61,431 |  |  | $ | 18 |  |  | $ | (26) |  |  | $ | 61,423 |
Schedule of Maturities of Marketable Securities | The following table summarizes the maturities of the Company’s marketable securities as of December 31, 2023 and 2024 (in thousands):
| December 31, 2023 |  | December 31, 2024
| Available-for-sale securities |  | Held-to-maturity securities |  | Available-for-sale securities |  | Held-to-maturity securities
Due within one year | $ | 12,553 |  |  | $ | 27,175 |  |  | $ | 499 |  |  | $ | 46,450 |
Due after one year through five years | 483 |  |  | — |  |  | — |  |  | 14,981 |
Total | $ | 13,036 |  |  | $ | 27,175 |  |  | $ | 499 |  |  | $ | 61,431 |
Schedule of Purchases and Proceeds of Marketable Securities | The following table summarizes the purchases of and proceeds from marketable securities for the years ended December 31, 2022, 2023, and 2024 (in thousands):
| December 31, 2022 |  | December 31, 2023 |  | December 31, 2024
Purchases of marketable securities |  |  |  |  |
Purchases of available-for-sale securities | $ | — |  |  | $ | — |  |  | $ | — |
Purchases of held-to-maturity securities | — |  |  | 26,905 |  |  | 54,117 |
Total purchases of marketable securities | $ | — |  |  | $ | 26,905 |  |  | $ | 54,117 |
Proceeds from marketable securities |  |  |  |  |
Maturities of available-for-sale securities | $ | 6,420 |  |  | $ | 9,800 |  |  | $ | 12,805 |
Maturities of held-to-maturity securities | — |  |  | — |  |  | 18,220 |
Total proceeds from marketable securities | $ | 6,420 |  |  | $ | 9,800 |  |  | $ | 31,025 |

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- Definition Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 + Details
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