Note 5. Leases

Lessee

During the three months ended June 30, 2026 and 2025, operating lease expense was $34 thousand and $14 thousand, respectively, and during the six months ended June 30, 2026 and 2025, operating lease expense was $48 thousand and $28 thousand, respectively.

During the three months ended June 30, 2026 and 2025, the Company had short-term lease expense of $20 thousand and $7 thousand, respectively, and during the six months ended June 30, 2026 and 2025, short-term lease expense was $39 thousand and $23 thousand, respectively.

During the three months ended June 30, 2026 and 2025, the Company had variable lease expense of $3 thousand and $0, respectively, and during the six months ended June 30, 2026 and 2025, variable lease expense was $10 thousand and $10 thousand, respectively

The lease liability is based on the present value of its unpaid minimum lease payments over the lease term, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, the incremental borrowing rate which is the rate the Company pays to borrow on a collateralized basis.

The table below presents certain information related to the weighted average remaining lease term and the weighted average discount rate for the Company’s operating leases, as of June 30, 2026:

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South Carolina Office Lease Agreement

On January 1, 2023, the Company initially entered into a lease for Suite 130 of 1700 Alta Vista Drive in Columbia, SC in which the initial term was January 1, 2023 through December 31, 2023. At the end of the initial lease term (December 31, 2023), the lease became a month to month lease in which either party (the Company or the lessor) could terminate the lease at any time with 30 days’ notice. The Company leased this space on a month to month basis for six months until June 30, 2024. On May 31, 2024, the Company entered into a new lease with the same lessor for the original Suite 130 and an additional space, Suite 140. The term of the new lease is from July 1, 2024 to June 30, 2026. Total rent is $3,150 per month from July 1, 2024 to June 30, 2025 and $3,276 per month from July 1, 2025 to June 30, 2026.

Lease Modification

On January 2, 2025, the Company entered into its first amendment to the South Carolina Office Lease (“Amended SC Lease”) to expand into an additional suite with approximately 1,950 additional square feet for a total of approximately 5,950 square feet of office space. The Amended SC Lease commencement date is January 2, 2025 and runs concurrently with the existing terms and conditions of the lease, through June 30, 2026. The Company determined that the lease payments increased commensurate with the standalone price for the additional right of use and as such, it is accounted for as a new lease, commencing on January 2, 2025. As such, the Company recorded an additional right-of-use asset and lease liability upon lease commencement of the new lease. Total rent is $1,536 per month from February 1, 2025 to June 30, 2025 and $1,598 per month from July 1, 2025 to June 30, 2026. The Amended SC Lease expired on June 30, 2026 and was not renewed or extended.

Columbia SC Lease

On April 1, 2026, the Company entered into an operating lease for approximately 10,927 square feet of office and warehouse space in Columbia, South Carolina. The lease has an initial term of approximately five years and commenced on May 1, 2026. Aggregate undiscounted base rent payments under the lease are approximately $611 thousand. Upon commencement, the Company recognized a right-of-use asset and corresponding operating lease liability of approximately $418 thousand. The Company has a standby letter of credit with a financial institution for $120,000 associated with the lease.

Future lease payments for all operating lease obligations as of June 30, 2026, for the following fiscal years and thereafter, are as follows (in thousands):

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Lessor

The Company owns certain networks and places them at customer sites under sales-type lease arrangements. The Company evaluates new leases pursuant to FASB ASC 842: Leases to determine lease classification. A lease is classified by a lessor as a sales-type lease if the significant risks and rewards of ownership reside with the customer.

The Company had net investment in sales-type leases as of June 30, 2026 and December 31, 2025 of $0.4 million and $0.5 million, respectively.

The table below reconciles the undiscounted cash flows to be received to the net investment in sales-type leases recorded in the unaudited condensed balance sheets (in thousands):

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Interest income recognized on lease arrangements is included in interest income, net, on the unaudited condensed statements of operations, and is presented below (in thousands):

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