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Leases
12 Months Ended
Dec. 31, 2025
Leases [Abstract]  
Leases Leases
As of December 31, 2025, we had non-cancelable operating leases for our corporate headquarters and manufacturing facilities located in Fremont, California and in Brighton, Colorado. Our Fremont, California lease, which expires in June 2027, provides us an option to extend the term for one additional five-year period and we determined with reasonable certainty that we will exercise such option. Our Brighton, Colorado lease, which expires in May 2039, provides us an option to extend the term for two additional five-year periods, but we have determined that we will not exercise such option. Our operating leases do not contain any material residual value guarantees. We had no leases that were classified as finance leases as of December 31, 2025 and 2024.

During the year ended December 31, 2025, we remeasured the lease liability and ROU asset at our Colorado facility to reflect the updated expectation that the tenant improvement allowance, which had originally been accounted for as a reduction of lease payments, were no longer expected to be received. The remeasurement resulted in an increase of approximately $2.2 million of both ROU asset and lease liability with no impact on our net loss.

As of December 31, 2025, due to larger industry dynamics, particularly our ability to access global contract manufacturing to rapidly service the demand from our customers, we decided to terminate the lease of the Colorado facility. In connection, management determined that changes in expected utilization and forecasted cash flows associated with the facility represented a triggering event to test for recoverability under ASC 360, Property, Plant, and Equipment.

In accordance with ASC 360, we performed a two-step impairment analysis:
Step I (Recoverability Test): We compared the carrying value of the Colorado asset group to the estimated undiscounted future cash flows expected to be generated by the Colorado asset group. The analysis indicated that the carrying value of the asset group was not recoverable, as the undiscounted cash flows were significantly lower than the carrying value of the operating lease ROU asset.
Step II (Measurement of Loss): We measured the impairment loss as the amount by which the carrying value of the assets exceeded their fair value. The measurement date was December 19, 2025, the date that we decided to discontinue manufacturing plans. We measured the impairment loss as the amount by which the carrying value of the assets exceeded their fair value that we determined was $13.4 million. Fair value was determined using the Income Approach, specifically, a discounted cash flow model based on management’s estimates of future cash flows over a forecast period of 13.5 years, reflecting the remaining lease term, and discounted using a rate of 9.5%. The discount rate, intended to reflect market participant assumptions, was determined based on a review of publicly-available return expectations that indicated rates of return for prevailing market return expectations. The fair value measurement is classified as Level 3 within the fair value hierarchy due to the use of significant unobservable inputs.

Based on this analysis, at December 31, 2025, we determined that the carrying amount of the ROU asset exceeded its fair value and recorded an impairment charge of $14.4 million. The impairment charge is included within “Impairment and Other” in our consolidated financial statements for the period ended December 31, 2025. At December 31, 2025, we remain obligated for future lease payments under the lease terms so we have not recognized any adjustment to the related lease liability nor the future operating lease payments presented below. See Note. 12 Subsequent Event for our discussion of the termination of the lease.
The components of lease expense during the years ended December 31, 2025 and 2024 are shown in the table below (in thousands).
Year ended December 31,
20252024
Operating lease expense$5,143 $5,143 
Variable lease expense2,915 1,741 
Short-term lease expense99 95 
Total lease expense$8,157 $6,979 
Other information about our operating leases during the years ended December 31, 2025 and 2024 are shown in the table below (amounts in thousands).
Year ended December 31,
20252024
Cash paid for amounts included in the measurement of operating lease
   liabilities
$3,450 $1,314 
Weighted-average remaining lease term12.6 years13.5 years
Weighted-average discount rate 9.5 %9.5 %
Future operating lease payments as of December 31, 2025 are as follows (in thousands):
Year ending December 31:Amount
2026$4,859 
20275,025 
20285,185 
20295,344 
20305,509 
Thereafter42,931 
Gross lease payments68,853 
Less - present value adjustments(28,981)
Total operating lease liabilities$39,872