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v3.21.2

Debt - Narrative (Details) |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 25, 2020 USD ($) | Mar. 02, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Oct. 01, 2022 installmentPayment
Debt Instrument [Line Items] |  |  |  |  |  |  |
Proceeds from long-term borrowing |  |  |  |  | $ 0 | $ 17,500,000 |
Origination fee | $ 125,000 |  |  |  |  |  |
Exit fee percentage |  |  | 3.75% |  | 3.75% |  |
Amortization of long-term debt issuance costs and fees |  |  |  |  | $ 213,000 | 39,000 |
Long-term debt |  |  | $ 16,801,000 |  | 16,801,000 |  |
Interest paid on debt |  |  | $ 344,000 | $ 0 | 1,041,000 | 142,000 |
Repayment of long-term debt |  |  |  |  | $ 0 | $ 4,999,000 |
Secured Debt | MidCap Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, face amount | $ 25,000,000 |  |  |  |  |  |
Floating interest rate | 6.25% |  |  |  |  |  |
Variable rate | 1.50% |  |  |  |  |  |
Interest rate increase |  |  |  |  | 2.00% |  |
Secured Debt | MidCap Credit Agreement | Forecast |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Number of monthly installment payments | installmentPayment |  |  |  |  |  |  | 36
Secured Debt | MidCap Credit Agreement | Prior to first anniversary |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Early termination fee |  |  | 3.00% |  | 3.00% |  |
Secured Debt | MidCap Credit Agreement | After first anniversary |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Early termination fee |  |  | 1.00% |  | 1.00% |  |
Secured Debt | MidCap Credit Agreement - Tranche 1 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Proceeds from long-term borrowing | $ 17,500,000 |  |  |  |  |  |
Fee amount | 656,000 |  |  |  |  |  |
Proceeds from debt, net of fees and issuance costs | 16,512,000 |  |  |  |  |  |
Unamortized debt issuance costs | 332,000 |  |  |  |  |  |
Secured Debt | MidCap Credit Agreement - Tranche 2 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, face amount |  |  | $ 7,500,000 |  | $ 7,500,000 |  |
Funding condition, required proceeds from equity issuance |  |  | 20,000,000 |  | 20,000,000 |  |
Unamortized debt issuance costs | $ 73,000 |  | 0 |  | 0 |  |
Amortization of long-term debt issuance costs and fees |  |  | $ 36,000 |  | $ 73,000 |  |
Loans Payable | Secured Debt | Hercules Technology Growth Capital |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayment of long-term debt |  | $ 4,999,000 |  |  |  |  |
Payments for debt end term fees |  | $ 100,000 |  |  |  |  |

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