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Long-Term Debt | 3 Months Ended
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Mar. 31, 2023
Long-term Debt |
Long-term Debt | 12. Long-Term Debt Long-term debt consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | March 31, |  | December 31,
​ | ​ | Maturity Date | ​ | 2023 | ​ | 2022
A&R Silicon Valley Bank term loan | ​ | December 1, 2025 | ​ | $ | — | ​ | $ | 19,879
​ Concurrent with the closing of the RIFA on January 27, 2023 (see Note 11), we repaid the amounts due under the SVB A&R LSA (as defined below), including termination fees and the Final Payment Fee, in full. This repayment resulted in a loss on extinguishment during the three months ended March 31, 2023 of $2.3 million. On January 7, 2022 (the “A&R SVB LSA Effective Date”), we entered into an Amended and Restated Loan and Security Agreement with SVB and SVB Innovation Credit Fund VIII, L.P. (“Innovation”) (the “A&R SVB LSA”). under which $20.0 million was funded on the A&R SVB LSA Effective Date. $10.5 million of the proceeds were used to satisfy its existing obligations with SVB and such obligations are considered fully repaid and terminated as of that date. We accounted for such repayment in accordance with ASC 405-20, Extinguishments of Liabilities, which resulted in a loss on extinguishment during the three months ended March 31, 2022 of $1.0 million. The A&R SVB LSA was to mature on December 1, 2025, and consisted of interest-only payments equal to the greater of 7.25% and the prime rate of interest plus 4.0% of the outstanding principal amount. The SVB A&R LSA also provided for a “Final Payment Fee” of 5.0% of the aggregate original principal amount of all loans made and a payment solely to SVB of $185,000 due on the earliest of the maturity date, the repayment of the debt in full, any optional prepayment or mandatory prepayment, or the termination of the A&R SVB LSA. ​ As an inducement to enter into the A&R SVB LSA, we issued SVB, Innovation, and Innovation Credit Fund VIII-A L.P. (“Innovation Credit”) warrants to purchase an aggregate of 250,000 shares of our common stock at an exercise price of $5.14 per share. The A&R SVB Warrants provide an option for a cashless exercise. We evaluated the features of the A&R SVB LSA and A&R SVB Warrants in accordance with ASC 480, Distinguishing Liabilities from Equity and ASC 815, Derivatives and Hedging and determined that they did not contain any features that would qualify as a derivative or embedded derivative. In addition, we determined that the A&R SVB Warrants should be classified as equity. ​ In accordance with ASC 470, Debt, the value of the A&R SVB Warrants and A&R SVB LSA was allocated using a relative fair value allocation. The fair value of the A&R SVB Warrants was determined to be $1.3 million and included in additional paid-in-capital, of which $0.7 million was recognized as a component of the loss on extinguishment and $0.6 million as a debt discount. The remaining $19.4 million was allocated to the A&R SVB LSA. In addition, we incurred fees of less than $0.1 million, which were recorded as debt issuance costs. The debt discount and debt issuance costs were being amortized to interest expense and the Final Payment Fee was being accreted using the effective interest method over the term of the A&R SVB LSA. The estimated fair value of the SVB Warrant was calculated using the Black-Scholes Option Pricing Model based on the following inputs: ​
​ | ​ | ​
Expected dividend yield | ​ | —
Risk-free interest rate |  | 1.76%
Expected volatility |  | 97.2%
Expected life (years) |  | 10.0
​

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI https://asc.fasb.org/topic&trid=2208564 + Details
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