v3.25.2
Long-Term Debt
 6 Months Ended
Jun. 30, 2025
Debt Disclosure [Abstract]  
Long-Term Debt Long-Term Debt
Our long-term debt is presented in the table below (in thousands):
 June 30, 2025December 31, 2024
Term debt$10,200 $10,200 
Unamortized discount(160)(177)
Total debt, net10,040 10,023 
Less: Current portion of long-term debt(1,944)(278)
Total long-term debt$8,096 $9,745 

Future maturities of principal amounts on long-term debt as of June 30, 2025 were as follows (in thousands):
Years Ending December 31,
2025$278 
20263,333 
20273,333 
20283,056 
Total$10,000 
2024 Loan and Security Agreement
On March 26, 2024 (the ‘‘Closing Date’’), we entered into a Loan and Security Agreement, as amended in April 2025 (the ‘‘2024 LSA”), by and between us, our wholly owned subsidiary, Castle Narnia Real Estate Holding 1, LLC and Silicon Valley Bank, a division of First-Citizens Bank & Trust Company (the “Lender’’). The 2024 LSA provides for (i) on the Closing Date, $10.0 million aggregate principal amount of term loans (discussed in the ‘‘2024 Term Loan’’ section below), and (ii) from the Closing Date until September 30, 2025, an additional line of credit of $25.0 million with the same interest rate and maturity as the term debt available (discussed in the ‘‘2024 Credit Line’’ section below) at our option.
The obligations under the 2024 LSA are secured by substantially all of our assets, excluding intellectual property, the real property held by us, and are subject to certain other exceptions and limitations. We have the right to prepay the 2024 LSA in whole, subject to a prepayment fee of approximately 1.50% if prepaid prior to March 26, 2026. Amounts repaid under the 2024 LSA may not be reborrowed.
In addition, the 2024 LSA contains customary conditions of borrowing, events of default and covenants, including covenants that restrict our ability to dispose of assets, merge with or acquire other entities, incur indebtedness and make distributions to holders of our capital stock. Should an event of default occur, including the occurrence of a material adverse change, we could be liable for immediate repayment of all obligations under the 2024 LSA. Should we seek to amend the terms of the 2024 LSA, the consent of the Lender would be required. As of June 30, 2025, we were in compliance with all of the covenants.
The 2024 LSA bears interest at a floating rate equal to the greater of (a) the WSJ Prime Rate plus 0.25% or (b) 6.00% per annum. The Term Loans are interest only from the Closing Date through November 30, 2025, which may be extended at our option through November 30, 2026 as long as no event of default under the 2024 LSA has occurred. After the end of the interest only period, we are required to pay equal monthly installments of principal through the maturity date of November 1, 2028.
We are also obligated to make an additional final payment of 2.00% of the aggregate original principal amounts of Term Loans advanced by the Lender, due at the earlier of the maturity date or date the Term Loans are repaid in full.
On April 4, 2025, the Company entered into a Consent and First Amendment (the “Amendment”) with the Lender. The Amendment modified certain terms of the 2024 LSA including the extension of the draw period from March 31, 2025 to September 30, 2025 for our line of credit.
2024 Term Loan
On March 26, 2024, we drew $10.0 million in Term Loans under the terms and provisions of the 2024 LSA. We are obligated to make a final payment of $0.2 million under the terms of the 2024 LSA final payment provisions. A discount on debt equal to this obligation was recorded on the draw date and is being amortized as additional interest expense using the effective interest method over the term of the debt. As of June 30, 2025, no payment on principal has been made. As of June 30, 2025, the weighted average effective interest rate for all outstanding debt under the 2024 Term Loan was 8.19%.
2024 Credit Line
We have a $25.0 million line of credit under the terms and provisions of the 2024 LSA and the Amendment, from the Closing Date through September 30, 2025. Amounts repaid under the 2024 Credit Line may not be reborrowed. As of June 30, 2025, no draws had been made on the line of credit.
Interest Expense on Long-Term Debt
Interest expense on long-term debt consisted of the following (in thousands):
 Three Months Ended
June 30,		Six Months Ended
June 30,
2025202420252024
Interest expense on long term debt$203 $228 $405 $241 
Less: Capitalized interest(194)(12)(388)(12)
Total$9 $216 $17 $229