13. DEBT

On September 27, 2019, we entered into a Credit and Security Agreement (Credit Agreement), dated as of September 27, 2019 (the Closing Date) with MidCap Financial Trust (MidCap). The Credit Agreement provides for a $60.0 million term loan credit facility with the following tranches: (i) on the Closing Date, $10.0 million aggregate principal amount of term loans, (ii) until December 31, 2020, an additional $10.0 million term loan facility at our option, (iii) until March 31, 2021, an additional $20.0 million term loan facility subject to the satisfaction of certain conditions and at our option and (iv) until March 31, 2022, an additional $20.0 million term loan facility subject to the satisfaction of certain conditions and at our option. The obligations under the Credit Agreement are secured by a perfected security interest in all of our assets except for intellectual property and certain other customary excluded property pursuant to the terms of the Credit Agreement.

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The outstanding principal balance of the loan bears interest at an annual rate of one-month LIBOR plus 5.65%, subject to a LIBOR floor of 1.50% and is payable monthly in arrears. Commencing on October 1, 2019, the Credit Agreement provides that we initially will make interest-only payments for 24 months followed by 36 months of amortization payments. The interest-only period will be extended to 36 months and again to 48 months upon the satisfaction of certain conditions set forth in the Credit Agreement. All unpaid principal and accrued interest is due and payable no later than September 1, 2024. A final payment fee of 2.5% of principal is due on the final payment of the term loan.

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We may make voluntary prepayments, in whole or in part, subject to certain prepayment premiums and additional interest payments. The Credit Agreement also contains certain provisions, such as event of default and change

in control provisions, which, if triggered, would require us to make mandatory prepayments on the term loan, which are subject to certain prepayment premiums and additional interest payments.

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As discussed above, at closing of the Credit Agreement, $10.0 million was funded in an initial tranche. In March 2020, we signed a credit extension form for the second tranche amounting to $10.0 million, which we received in May 2020. The facility also gives us the ability to access an additional $40.0 million at our option, subject to the achievement of certain customary conditions.

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The following table presents the future minimum payments we expect to make on our outstanding loan as of December 31, 2020 (in thousands):

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We paid certain costs and fees totaling $236,000 which were recorded as a direct deduction from the term loan on the balance sheet and are being amortized ratably as interest expense over the term of the loan, using the effective interest method. As of December 31, 2020, the unamortized issuance costs and debt discounts amounted to $185,000.

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Interest expense, including amortization of the debt discount, related to the Credit Agreement were $1.4 million and $237,000 during the years ended December 31, 2020 and 2019, respectively. Accrued interest was $272,000 as of December 31, 2020. As of December 31, 2020, the outstanding balance of the loan was $19.8 million, net unamortized debt discount.

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The Credit Agreement contains certain covenants which, among others, require us to deliver financial reports at designated times of the year and maintain minimum net revenues and $10.0 million of cash upon the draw of tranche three or tranche four. As of December 31, 2020, we were not in violation of any covenants.