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Segment Information | 3 Months Ended
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Mar. 31, 2026
Segment Reporting [Abstract] |
Segment Information | 15. Segment Information Operating segments are defined as components of an enterprise about which separate discrete information is available for evaluation by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. The Company has identified its Chief Executive Officer as the chief operating decision maker and the Company views its operations and manages its business in one operating segment, applying advanced technologies to established tumor biology that are intended to efficiently deliver improved cancer treatments. The CODM assesses performance for the Company's single operating segment and decides how to allocate resources based on research and development expenses incurred and on net (loss) income as reported on the statement of operations and comprehensive (loss) income. The measure of segment assets is reported on the balance sheet as total assets. Further, segment depreciation expense and segment asset additions are consistent with amounts reported within the statement of cash flows given the Company's operations are aggregated within a single reportable segment. The Company's revenues relate to sales of FYARRO, which was divested as of March 25, 2025. Refer to Note 2 for further information. All the assets and operations of the Company’s sole operating and reportable segment are located in the United States. Significant segment expenses which are regularly reported to the CODM for purposes of making decisions regarding the allocation of resources are included within the table below and are reconciled to net (loss) income (in thousands):
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025 |
Total Revenue |  | $ | — |  |  | $ | 7,145 |
Less: |  |  |  |  |  |
ADC assets - research and development expenses |  |  | 12,037 |  |  |  | — |
ADC assets - contract manufacturing |  |  | 5,188 |  |  |  | 3,475 |
FYARRO - research and development expenses |  |  | 7 |  |  |  | 5,313 |
FYARRO - commercial and marketing expenses |  |  | — |  |  |  | 294 |
Finance and accounting expenses (1) |  |  | 2,078 |  |  |  | 3,216 |
Legal expenses |  |  | 1,052 |  |  |  | 2,587 |
Other segment items (2) |  |  | 1,832 |  |  |  | (80,756 | )
Net (loss) income |  | $ | (22,194 | ) |  | $ | 73,016 |
(1) Finance and accounting expenses primarily include shared-based compensation, insurance, salaries and wages, and other outside consulting services. (2) Other segment items primarily include other SGA departmental expenses, cost of sales, other inc ome, and gain on sale of business.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-21 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name 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