XML 26 R16.htm IDEA: XBRL DOCUMENT
v3.25.1

Common Stock Warrants | 3 Months Ended
--- | ---
Mar. 31, 2025
Common Stock Warrants |
Common Stock Warrants | 9. Common Stock Warrants As of March 31, 2025 and December 31, 2024, the following common stock warrants were outstanding: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ |  | Exercise Price |  | March 31, |  | December 31,
Issuance Date | ​ | Expiration Date | ​ | Balance Sheet Classification | ​ | per Share | ​ | 2025 | ​ | 2024
May 2018 | ​ | May 2028 | ​ | Stockholders’ equity | ​ | $ | 23.69 | ​ | 6,332 | ​ | 6,332
March 2019 | ​ | March 2029 | ​ | Stockholders’ equity | ​ | $ | 14.71 | ​ | 4,845 | ​ | 4,845
December 2023 | ​ | December 2033 | ​ | Stockholders’ equity | ​ | $ | 35.00 | ​ | 40,000 | ​ | 40,000
December 2023 | ​ | December 2033 | ​ | Stockholders’ equity | ​ | $ | 42.50 | ​ | 40,000 | ​ | 40,000
December 2023 | ​ | December 2033 | ​ | Stockholders’ equity | ​ | $ | 50.00 | ​ | 40,000 | ​ | 40,000
​ |  |  |  |  | ​ |  |  |  | 131,177 |  | 131,177
​

X
- References No definition available. + Details
Name: | us-gaap_WarrantsAndRightsNoteDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common stock warrant. + References No definition available. + Details
Name: | xoma_CommonStockWarrantDisclosureTextBlock
Namespace Prefix: | xoma_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration