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v3.20.1

Notes Payable - Additional Information (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 29, 2019 USD ($) installment item $ / shares shares | Dec. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |
Total amount available | $ 20,000,000 |
Proceeds from Horizon Notes | 15,000,000 |
Remaining amount fundable | $ 5,000,000 |
Maturity of each advance | 42 months |
Number of advances | item | 3 |
Base interest rate (as a percent) | 9.00% | 2.50%
Variable interest rate floor (as a percent) | 2.50% |
Number of monthly installments | installment | 18 |
Prepayment notice period | 10 days |
Prepayment charge threshold | $ 500,000 |
Prepayment charge (as a percent) | 4.00% |
Prepayment charge, second period (as a percent) | 3.00% |
Prepayment charge, thereafter (as a percent) | 2.00% |
Final payment fee per advance | $ 250,000 |
Final payment fee | 750,000 | $ 750,000
Default threshold | $ 250,000 |
Minimum monthly cash balance, range |  | 13,000,000
Percentage of warrant coverage | 5.00% |
Number of warrant instruments | item | 4 |
Shares issued for warrants | shares | 288,184 |
Warrant exercise price (in dollars per share) | $ / shares | $ 3.47 |
Fair value of warrants | $ 900,000 |
Warrant exercise period | 10 years |
Warrant stand-by period | 6 months |
Commitment fee | $ 200,000 |
Legal and other direct costs | 1,200,000 |
Amortization of debt discount |  | $ 700,000
Horizon Notes |  |
Debt Instrument [Line Items] |  |
Legal fees paid | 30,000 |
Minimum |  |
Debt Instrument [Line Items] |  |
Legal fees paid | 8,000,000 |
Maximum |  |
Debt Instrument [Line Items] |  |
Legal fees paid | $ 13,000,000 |

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- Definition The amount of material default under certain agreements or obligations of the debtor that triggers default under the debt instrument. + References No definition available. + Details
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- Definition The floor rate above which variable interest applies to the debt instrument. + References No definition available. + Details
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- Definition The minimum monthly cash balance that must be maintained over the term of the debt instrument to avoid default. + References No definition available. + Details
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- Definition The prepayment charge applicable to payments made after one year after the loan amortization date, as a percent. + References No definition available. + Details
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- Definition The prepayment charge applicable to payments made within one year after the loan amortization date, as a percent. + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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