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Leases | 6 Months Ended
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Jun. 30, 2024
Leases [Abstract] |
Leases | Note 17. Leases ​ We lease certain equipment, office space, warehouse and facilities under long-term operating leases expiring at various dates through July 2029. The majority of our lease obligations relate to our lease agreement for our facility in Fremont, California with approximately 19,467 square feet, which was scheduled to expire in 2020. Under the terms of the facility lease agreement, in May 2020, we were granted an extension to the term of the lease for an additional three years. Furthermore, in September 2023, we entered into another agreement to extend the lease for an additional five years, commencing December 2023. There are no variable lease payments, residual value guarantees or any restrictions or covenants imposed by the facility lease. The remaining lease obligations relate to a nitrogen system to be used during the manufacturing process for our facility in Dingxing, China. The equipment lease became effective in August 2019 and will expire in July 2029. There are no variable lease payments, residual value guarantees or any restrictions or covenants imposed by the equipment lease. All other operating leases have a term of 12 months or less. ​ Leases are classified as either finance leases or operating leases. A lease is classified as a finance lease if any one of the following criteria are met: the lease transfers ownership of the asset by the end of the lease term, the lease contains an option to purchase the asset that is reasonably certain to be exercised, the lease term is for a major part of the remaining useful life of the asset or the present value of the lease payments equals or exceeds substantially all of the fair value of the asset. A lease is classified as an operating lease if it does not meet any one of these criteria. All of our leases are classified as operating leases and substantially all of our operating leases are comprised of equipment and office space leases. None of our leases are classified as finance leases. ​ For all leases at the lease commencement date, a right-of-use asset and a lease liability are recognized. The right-of-use asset represents the right to use the leased asset for the lease term. The lease liability represents the present value of the lease payments under the lease. ​ The right-of-use asset is initially measured at cost, which primarily comprises the initial amount of the lease liability, plus any initial direct costs incurred, consisting mainly of brokerage commissions, less any lease incentives received. All right-of-use assets are reviewed for impairment. The lease liability is initially measured at the present value of the lease payments, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, our secured incremental borrowing rate for the same term as the underlying lease. ​ Lease payments included in the measurement of the lease liability comprise the following: the fixed noncancelable lease payments, payments for optional renewal periods where it is reasonably certain the renewal period will be exercised, and payments for early termination options unless it is reasonably certain the lease will not be terminated early. ​ Lease expense for operating leases consists of the lease payments plus any initial direct costs, primarily brokerage commissions, and is recognized on a straight-line basis over the lease term. ​ We have elected not to recognize right-of-use assets and lease liabilities for short-term leases that have a term of 12 months or less. The effect of short-term leases on our right-of-use asset and lease liability was not material. ​ As of June 30, 2024, the maturities of our operating lease liabilities (excluding short-term leases) are as follows (in thousands): ​
​ | ​ | ​
Maturity of Lease Liabilities |  | ​
2024 | $ | 293
2025 | ​ | 598
2026 | ​ | 612
2027 | ​ | 626
2028 | ​ | 608
Thereafter | ​ | 149
Total minimum lease payments | ​ | 2,886
Less: Interest | ​ | (332)
Present value of lease obligations | ​ | 2,554
Less: Current portion, included in accrued liabilities | ​ | (471)
Long-term portion of lease obligations | $ | 2,083
​ The weighted-average remaining lease term and the weighted-average discount rate for our operating leases as of each date is as follows: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31, | ​
​ | ​ | 2024 | ​ | 2023 | ​
Weighted-average remaining lease term (years) | ​ | 4.72 | ​ | 5.22 | ​
Weighted-average discount rate | ​ | 5.14 | % | 5.14 | %
​ ​ Supplemental cash flow information related to leases where we are the lessee is as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​
​ | ​ | 2024 | ​ | 2023 | ​
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating cash flows from operating leases | ​ | $ | 292 | ​ | $ | 289 | ​
​ The components of lease expense are as follows (in thousands) within our condensed consolidated statements of operations:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended
​ | ​ | June 30, | ​ | June 30,
​ | ​ | 2024 | ​ | 2023 | ​ | 2024 | ​ | 2023
Operating lease | ​ | $ | 153 | ​ | $ | 128 | ​ | $ | 306 | ​ | $ | 257
Short-term lease expense | ​ | ​ | 42 | ​ | ​ | 37 | ​ | ​ | 83 | ​ | ​ | 71
Total | ​ | $ | 195 | ​ | $ | 165 | ​ | $ | 389 | ​ | $ | 328
​

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/842-20/tableOfContent + Details
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