9. Leases

As of December 31, 2024, we lease one corporate office located in Austin, Texas with a termination date in September 2027.

On June 3, 2022, we entered into a lease agreement pursuant to which we lease approximately 7,458 square feet in Austin, Texas, which we intend to use as professional office space for our corporate headquarters. The lease commenced on June 10, 2022 and has a term of sixty-four (64) months, with an option to renew the lease for an additional five-year term at the conclusion of the initial term. The lease provided for rent abatement until September 30, 2022. Beginning on October 1, 2022, initial base rent payments are approximately $28 per month, subject to escalations contained therein. In addition, we are responsible for payments equal to our proportionate share of operating expenses, which is currently estimated to be approximately $9 per month, plus electrical and janitorial services, which are to be contracted and paid separately by us. As a result of entering into this lease agreement, we recorded a right-of-use asset and corresponding lease liability of $1,508 on the commencement date noted above.

On October 4, 2023, we entered into a lease termination agreement with the landlord of our office space in San Diego, California, in which the landlord and us agreed to terminate our lease effective October 31, 2023. We agreed to forfeit our security deposit of approximately $14 and pay an early termination fee in the amount of approximately $68 on October 31, 2023. The lease was originally scheduled to conclude on June 30, 2025.

The weighted-average remaining lease term for our operating leases as of December 31, 2024 and 2023 was 2.75 years and 3.1 years, respectively. As our leases generally do not include an implicit rate, we compute our incremental borrowing rate based on information available at the lease commencement date applying a rate to each lease. This approach requires significant judgment. We used incremental borrowing rates that match the duration of the remaining lease terms of our operating leases on a fully collateralized basis at the time we enter into the lease to initially measure our lease liability. The weighted average incremental borrowing rate used to measure our lease liability was 5.98% and 9.63% as of December 31, 2024 and 2023, respectively.

We recognize lease expense on a straight-line basis over the lease term with variable lease expense recognized in the period in which the costs are incurred. The components of lease expense are included in general and administrative expense in the consolidated statements of operations and comprehensive loss. Rent expense for continuing operations under operating leases totaled $633 and $827 for the years ended December 31, 2024 and 2023, respectively.

In 2021, we entered into two sublease agreements for our Miami, Florida and Irvine, California office spaces, in which the subtenants will pay us monthly base rent, subject to escalations throughout the term of the sublease. The Miami sublease agreement terminated on June 30, 2023, while the Irvine, California sublease agreement terminated on October 31, 2024. We recognized sublease income of $183 and $254 for the years ended December 31, 2024 and 2023, respectively.