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Investments | 3 Months Ended
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Mar. 31, 2025
Investments, Debt and Equity Securities [Abstract] |
Investments | Investments Available-for-sale securities The Company’s portfolio of available-for-sale marketable securities consists of the following:
| March 31, 2025
| Amortized Cost |  | Gross unrealized |  | Estimated Fair Value
(In thousands) |  | Gains |  | Losses |
Available-for-sale securities, current portion |  |  |  |  |  |  |
U.S. government securities | $ | 6,509 |  |  | $ | 3 |  |  | $ | - |  |  | $ | 6,512 |
Corporate debt securities | 11,638 |  |  | 13 |  |  | (1) |  |  | 11,650 |
Other debt securities | 3,472 |  |  | 2 |  |  | (1) |  |  | 3,473 |
Total short-term | 21,619 |  |  | 18 |  |  | (2) |  |  | 21,635 |
Available-for-sale securities, long-term |  |  |  |  |  |  |
U.S. government securities | 1,779 |  |  | 7 |  |  | - |  |  | 1,786 |
Corporate debt securities | 12,631 |  |  | 14 |  |  | (4) |  |  | 12,641 |
Other debt securities | 4,628 |  |  | 3 |  |  | (3) |  |  | 4,628 |
Total long-term | 19,038 |  |  | 24 |  |  | (7) |  |  | 19,055 |
Total marketable securities | $ | 40,657 |  |  | $ | 42 |  |  | $ | (9) |  |  | $ | 40,690 |
| December 31, 2024
| Amortized Cost |  | Gross unrealized |  | Estimated Fair Value
(In thousands) |  | Gains |  | Losses |
Available-for-sale securities, current portion |  |  |  |  |  |  |
U.S. government securities | $ | 1,493 |  |  | $ | 1 |  |  | $ | - |  |  | $ | 1,494 |
Corporate debt securities | 5,775 |  |  | 14 |  |  | (1) |  |  | 5,788 |
Other debt securities | 1,912 |  |  | 4 |  |  | - |  |  | 1,916 |
Total short-term | 9,180 |  |  | 19 |  |  | (1) |  |  | 9,198 |
Available-for-sale securities, long-term |  |  |  |  |  |  |
Corporate debt securities | 3,210 |  |  | 4 |  |  | (2) |  |  | 3,212 |
Other debt securities | 1,412 |  |  | 5 |  |  | (1) |  |  | 1,416 |
Total long-term | 4,622 |  |  | 9 |  |  | (3) |  |  | 4,628 |
Total marketable securities | $ | 13,802 |  |  | $ | 28 |  |  | $ | (4) |  |  | $ | 13,826 |
| March 31, 2025
(In thousands) | Amortized Cost |  | Estimated Fair Value
Due in one year or less | $ | 21,619 |  |  | $ | 21,636 |
Due after one year through five years | 19,038 |  |  | 19,054 |
Total | $ | 40,657 |  |  | $ | 40,690 |
The following tables present information about the available-for-sale investments that had been in a continuous unrealized loss position for less than 12 months:
| March 31, 2025
| Less than 12 months |  | Total
(In thousands) | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Corporate debt securities | $ | 4,913 |  |  | $ | (4) |  |  | $ | 4,913 |  |  | $ | (4) |
Other debt securities | 5,082 |  |  | (2) |  |  | 5,082 |  |  | (2) |
Total | $ | 9,995 |  |  | $ | (6) |  |  | $ | 9,995 |  |  | $ | (6) |
| December 31, 2024
| Less than 12 months |  | Total
(In thousands) | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Corporate debt securities | $ | 2,091 |  |  | $ | (3) |  |  | $ | 2,091 |  |  | $ | (3) |
Other debt securities | 1,030 |  |  | (1) |  |  | 1,030 |  |  | (1) |
Total | $ | 3,121 |  |  | $ | (4) |  |  | $ | 3,121 |  |  | $ | (4) |
As of March 31, 2025 and December 31, 2024, all available-for-sale securities investments presented above with unrealized losses have been in an unrealized loss position for less than 12 months. As of March 31, 2025, none of our available-for-sale marketable securities exhibited risk of credit loss and therefore no allowance for credit losses was recorded. Equity investments The Company periodically invests in non-marketable equity securities of private companies without a readily determinable fair value to promote business and strategic objectives. The Company has adopted the measurement alternative whereby equity securities are carried at cost minus impairment, if any, plus or minus changes resulting from observable process changes in orderly transactions for identical or similar transactions of the same issuer. These securities included Series E Preferred Stock in PanTHERA carried at $1.0 million as of March 31, 2025 and December 31, 2024. On April 4, 2025, the Company purchased the remaining 90% of PanTHERA common shares it did not own as of March 31, 2025 for an $10.0 million in cash and 213,361 shares of the Company's Common stock and other contingent consideration. For additional details on the transaction, see Note 19: Subsequent events.

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- Definition The entire disclosure for investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/320/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 321 -Publisher FASB -URI https://asc.fasb.org/321/tableOfContent Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 325 -Publisher FASB -URI https://asc.fasb.org/325/tableOfContent + Details
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