XML 39 R26.htm IDEA: XBRL DOCUMENT
v3.21.2

Lease Agreements (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Lease Agreements |
Schedule of maturity of operating lease liabilities | The following table summarizes maturity of the Company’s operating lease liabilities as of June 30, 2021 (in thousands): ​
​ | ​ | ​ | ​
​ | ​ | Operating
Undiscounted lease payments |  | Leases
2021 (excluding six months ended June 30, 2021) | ​ | $ | 98
2022 | ​ |  | 202
2023 | ​ |  | 34
Thereafter | ​ |  | —
Total undiscounted lease payments | ​ |  | 334
Present value adjustment | ​ |  | (14)
Total net lease liabilities |  | $ | 320
Schedule of cost components of operating leases | The following table summarizes the cost components of the Company’s operating leases for the three and six months ended June 30, 2021 and 2020 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended June 30, |  | Six Months Ended June 30,
​ |  | 2021 | ​ | 2020 |  | 2021 |  | 2020
Lease costs: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease cost | ​ | $ | 44 | ​ | $ | 44 |  | $ | 88 |  | $ | 88
Variable lease cost (1) | ​ |  | 2 | ​ |  | 1 |  | ​ | 5 |  | ​ | 2
Total lease costs | ​ | $ | 46 | ​ | $ | 45 |  | $ | 93 | ​ | $ | 90
| (1) | Under the terms of the lease agreements, 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.
Summary of supplemental cash flow information related to operating leases | The following information represents supplemental disclosure for the statement of cash flows related to operating leases (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Six Months Ended June 30,
​ |  | 2021 | ​ | 2020
Cash paid for amounts included in the measurement of lease liabilities | ​ |  | ​ | ​ |  | ​
Operating cash flows under operating leases | ​ | $ | 98 | ​ | $ | 94
Schedule of present value assumptions used in calculating the present value of lease payments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, | ​ | December 31,
​ |  | 2021 | ​ | 2020
Weighted-average remaining lease term | ​ | ​ | ​ | ​ | ​ | ​
Operating leases | ​ | 1.67 years | ​ | ​ | 2.17 years | ​
Weighted-average discount rate | ​ | ​ | ​ | ​ | ​ | ​
Operating leases | ​ | 5.51 | % | ​ | 5.51 | %

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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 Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of supplemental cash flows information related to leases. + References No definition available. + Details
Name: | xoma_LesseeOperatingLeaseSupplementalCashFlowInformationTableTextBlock
Namespace Prefix: | xoma_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of supplemental information related to operating leases. May include, but not limited to, present value assumptions used in calculating the present value of the lease payments. + References No definition available. + Details
Name: | xoma_LesseeOperatingLeaseSupplementalInformationTableTextBlock
Namespace Prefix: | xoma_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration