XML 31 R13.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Lease Agreements | 9 Months Ended
--- | ---
Sep. 30, 2022
Lease Agreements |
Lease Agreements | 7. Lease Agreements The Company leases one facility in Emeryville, California under an operating lease that expires in February 2023. The Emeryville lease contains an option to extend the lease for an additional term, however, the Company is not reasonably certain to exercise this option. The following table summarizes maturity of the Company’s operating lease liabilities as of September 30, 2022 (in thousands):
​ | ​ | ​ | ​
​ | ​ | Operating
Undiscounted lease payments |  | Leases
2022 (excluding the nine months ended September 30, 2022) | ​ | $ | 52
2023 | ​ |  | 34
Total undiscounted lease payments | ​ |  | 86
Present value adjustment | ​ |  | (1)
Total net lease liabilities |  | $ | 85
​ The following table summarizes the cost components of the Company’s operating leases for the three and nine months ended September 30, 2022 and 2021 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
​ |  | 2022 | ​ | 2021 |  | 2022 |  | 2021
Lease costs: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease cost | ​ | $ | 45 | ​ | $ | 45 |  | $ | 133 |  | $ | 133
Variable lease cost (1) | ​ |  | 4 | ​ |  | 3 |  | ​ | 9 |  | ​ | 8
Total lease costs | ​ | $ | 49 | ​ | $ | 48 |  | $ | 142 | ​ | $ | 141
​ (1)Under the terms of the lease agreement, the Company is also responsible for certain variable lease payments that are not included in the measurement of the lease liability. Variable lease payments include non-lease components such as common area maintenance fees. ​ The following information represents supplemental disclosure for the statement of cash flows related to operating leases (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Nine Months Ended September 30,
​ |  | 2022 | ​ | 2021
Cash paid for amounts included in the measurement of lease liabilities | ​ |  | ​ | ​ |  | ​
Operating cash flows under operating leases | ​ | $ | 151 | ​ | $ | 147
​ The present value assumptions used in calculating the present value of the lease payments as of September 30, 2022 and December 31, 2021 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, | ​ | December 31,
​ |  | 2022 | ​ | 2021
Weighted-average remaining lease term | ​ | 0.42 years | ​ | ​ | 1.17 years | ​
Weighted-average discount rate | ​ | 5.51 | % | ​ | 5.51 | %
​

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

X
- Definition The entire disclosure of information about leases. + References No definition available. + Details
Name: | xoma_LeaseDisclosureTextBlock
Namespace Prefix: | xoma_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration