Debt and Related Warrants
In July 2015, the Company entered into a revolving debt facility (“Loan and Security Agreement”). The Loan and Security Agreement was subsequently amended and restated, the First Amended and Restated Loan and Security Agreement, in November 2018 to increase the available borrowings to $18.0 million and extend the maturity date to April 2021.
In December 2020, the Company entered into the Second Amended and Restated Loan and Security Agreement, which provided a $40.0 million revolving credit facility with a maturity date of November 30, 2023. The Company’s obligations under the agreement contained certain customary covenants, including, but not limited to, those relating to additional indebtedness, liens, asset divestitures and affiliate transactions. The agreement also contained a liquidity covenant equal to the greater of (i) $5.0 million or (ii) total six-month adjusted EBITDA burn when the sum of the outstanding principal amounts are equal or in excess of $18.0 million. The revolving credit facility bore interest on outstanding borrowings as the sum of the Daily Adjusting LIBOR Rate for such day plus 2.50% plus an applicable margin of 0.25% per annum.
Additionally, the revolving debt facility included an unused facility fee equal to 0.25% per annum of the difference between the total revolving credit facility and the average outstanding principal balance of the obligations under the revolving credit facility during each quarter.
Substantially all the Company’s assets were pledged as collateral for these loans. The Company was required to meet certain nonfinancial covenants.
In connection with its amended and restated loan and security agreements, at various times, the Company granted warrants to purchase 49,869 shares of the Company’s common stock at exercise prices ranging from $0.525 per share to $10.80 per share. The warrants are exercisable for 10 years. At the time of issuance, the Company determined the estimated fair value of the warrants. As the warrants represent a freestanding equity instrument, the Company recorded the fair value of the warrants in additional paid in capital. In October 2021, all outstanding warrants were exercised for a total of $0.1 million.
In November 2021, the Company extinguished the Loan and Security Agreement. The Company did not incur any early termination fees in connection with the termination of the agreement. The Company had no outstanding debt as of December 31, 2022.
The Company incurred nominal aggregate debt issuance costs in connection with its loan and security agreements. These costs were being amortized to non-cash interest expense over the terms of the related indebtedness using the straight-line method which approximates the effective interest method. In connection with the extinguishment of the Loan and Security Agreement in November 2021, the Company recognized the remaining $0.2 million of debt issuance costs as interest expense. There was no amortization expense related to debt issuance costs for the year ended December 31, 2022.