Total carrying value of debt consists of the following (in thousands):


	September 30, 2024		December 31, 2023
Convertible notes:
2014 Notes	$	299	$	569
2019 Notes, current		54,913		54,530
Total convertible notes, net		55,212		55,099
Term loan, non-current		—		3,414
Term loan, current		—		5,000
Total debt	$	55,212	$	63,513

In February 2014, the Company closed an underwritten public offering of 2014 Senior Convertible Notes (the "2014 Notes"), which will mature on February 1, 2034, unless earlier converted, redeemed or repurchased in accordance with the terms of the 2014 Notes. Holders may require the Company to repurchase all or a portion of their 2014 Notes beginning on February 6, 2029 at a repurchase price in cash equal to 100% of the principal amount of the 2014 Notes plus accrued and unpaid interest. In March 2024, the Company repurchased $0.3 million of the outstanding principal amount of the 2014 Notes.

In November 2019, the Company issued $55.0 million aggregate principal amount of 2019 Senior Convertible Notes (the "2019 Notes" and together with the 2014 Notes, the "Convertible Notes"). Net proceeds from the 2019 Notes issuance of $52.7 million, after deductions for commissions and other debt issuance costs, were used to retire all but $1.1 million of the aggregate principal value of the 2014 Notes then outstanding. The 2019 Notes bear interest at 5.25% per annum, payable semiannually on June 1 and December 1 of each year. The 2019 Notes will mature on December 1, 2024, unless earlier repurchased or converted pursuant to their terms. The 2019 Notes will be convertible at the option of the holder at any point prior to the close of business on the second scheduled trading day preceding the maturity date. The initial conversion rate of the 2019 Notes is 344.8276 shares of the Company’s common stock per $1,000 principal amount of 2019 Notes (which is equivalent to an initial conversion price of approximately $2.90 per share). The conversion rate is subject to adjustment upon the occurrence of certain specified events. Those certain specified events include conversion of the 2019 Notes in connection with a make-whole fundamental change, entitling the holders, under certain circumstances, to a make-whole premium in the form of an increase in the conversion rate determined by reference to a make-whole table set forth in the indenture governing the 2019 Notes. The conversion rate will not be adjusted for any accrued and unpaid interest. The 2019 Notes are convertible at the Company’s option in whole but not in part into shares of the Company’s common stock upon certain conditions if the volume-weighted average price of the Company’s common stock has equaled or exceeded 130% of the conversion price then in effect for a specified number of days.

Offering-related costs related to the Convertible Notes were capitalized as debt issuance costs and are recorded as an offset to the carrying value of the 2019 Notes.

The carrying values of the Convertible Notes approximate fair values as the interest rate and terms are reflective of the rate the Company could obtain on debt with similar terms and conditions. The Convertible Notes are not regularly traded and there is no

public market for the Convertible Notes. The estimated fair values for the Convertible Notes represent Level 3 valuations since the fair values for the Convertible Notes cannot be determined by using readily observable inputs or measures, such as market prices.

On August 2, 2021, the Company amended its revolving credit facility to, amongst other things, provide for a new $10.0 million term loan facility (the "Term Loan Facility"). As of December 31, 2023, the Term Loan Facility was fully drawn with an outstanding principal balance of $7.9 million and a carrying value of $8.4 million. The interest rate on the Term Loan Facility was the greater of 4.0% per annum or a floating per annum rate equal to the prime rate plus 0.75%. Interest on any outstanding term loan advances was due and payable monthly. In addition to the monthly interest payments, a final payment equal to 6.5% of the original principal amount of each advance was due the earlier of the maturity date or the date the advance is repaid. Principal balances were required to be repaid in 24 equal installments which began on August 1, 2023. The stated maturity of the Term Loan Facility was July 1, 2025.

On March 4, 2024, the Company fully repaid all outstanding indebtedness owed pursuant to the Term Loan Facility and terminated the agreement.