XML 71 R60.htm IDEA: XBRL DOCUMENT
v3.22.1

Commitments and Contingencies - Collaborative Agreements, Royalties and Milestone Payments (Details) $ in Millions | Mar. 31, 2022 USD ($) product
--- | ---
Commitments and Contingencies |
Estimate of milestone payments | $ | $ 6.3
Assumed number of products per contract | product | 1

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

X
- Definition Estimated potential obligations that come due and payable upon achievement of developmental, regulatory, or commercial milestones by company's licensees. Represent contingent payments not recorded on balance sheet. + References No definition available. + Details
Name: | xoma_ContractualObligationEstimatedMilestonePayments
Namespace Prefix: | xoma_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Assumed number of products per contract meeting milestone events used to calculate potential milestone obligations. + References No definition available. + Details
Name: | xoma_ContractualObligationEstimatedMilestonePaymentsNumberOfProducts
Namespace Prefix: | xoma_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant