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FAIR VALUE MEASUREMENTS (Tables) | 6 Months Ended
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Jun. 30, 2025
Fair Value Disclosures [Abstract] |
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis | The following represents assets and liabilities measured at fair value on a recurring basis by the Company (in thousands):
June 30, 2025 |  | Fair Value |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |  |
Money market funds |  | $ | 14,979 |  |  | $ | 14,979 |  |  | $ | — |  |  | $ | — |
Investment in iECURE |  | 744 |  |  | — |  |  | — |  |  | 744 |
Assets held for sale |  | 140 |  |  | — |  |  | — |  |  | 140 |
|  | $ | 15,863 |  |  | $ | 14,979 |  |  | $ | — |  |  | $ | 884 |
Liabilities: |  |  |  |  |  |  |  |
Final payment fee |  | $ | 200 |  |  | $ | — |  |  | $ | 200 |  |  | $ | — |
Warrant liability |  | 2,847 |  |  | — |  |  | — |  |  | 2,847 |
|  | $ | 3,047 |  |  | $ | — |  |  | $ | 200 |  |  | $ | 2,847 |
December 31, 2024 |  | Fair Value |  | Level 1 |  | Level 2 |  | Level 3
Assets: |  |  |  |  |  |  |  |
Money market funds |  | $ | 14,687 |  |  | $ | 14,687 |  |  | $ | — |  |  | $ | — |
Investment in iECURE |  | 3,206 |  |  | — |  |  | — |  |  | 3,206 |
Imugene Marketable Securities |  | 413 |  |  | 413 |  |  | — |  |  | — |
Assets held for sale |  | 169 |  |  | — |  |  | — |  |  | 169 |
|  | $ | 18,475 |  |  | $ | 15,100 |  |  | $ | — |  |  | $ | 3,375 |
Liabilities: |  |  |  |  |  |  |  |
Final payment fee |  | $ | 194 |  |  | $ | — |  |  | $ | 194 |  |  | $ | — |
Warrant Liability |  | 2,796 |  |  | — |  |  | — |  |  | 2,796 |
|  | $ | 2,990 |  |  | $ | — |  |  | $ | 194 |  |  | $ | 2,796 |
Summary of Financial Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs | The following represents a reconciliation of assets measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) for the six months ended June 30, 2025 (in thousands). The warrant reconciliation is disclosed in Note 13, Warrants:
|  | Investment in iECURE |  | Assets held for sale
Balance December 31, 2024 |  | $ | 3,206 |  |  | $ | 169 |
(Loss) gain from changes in fair value included in earnings |  | (2,462) |  |  | 1 |
Assets sold |  | — |  |  | (4) |
Write-offs |  | — |  |  | (26) |
Balance June 30, 2025 |  | $ | 744 |  |  | $ | 140 |

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- Definition Tabular disclosure of financial instrument measured at fair value on recurring or nonrecurring basis. Includes, but is not limited to, instrument classified in shareholders' equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 + Details
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- Definition Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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