Loan and Security Agreement - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Feb. 28, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
|
| Debt Instrument [Line Items] | ||||||
| Debt, non-current | $ 18,714 | $ 18,714 | $ 24,545 | |||
| Interest payable | 200 | 200 | $ 200 | |||
| Loan and accretion of debt discount | 100 | $ 100 | 400 | $ 300 | ||
| Interest expense, debt | $ 700 | $ 700 | $ 1,900 | $ 1,700 | ||
| Average interest rate | 8.07% | 8.07% | 8.07% | 8.08% | ||
| Loan and Security Agreement | Oxford Finance LLC and Silicon Valley Bank | ||||||
| Debt Instrument [Line Items] | ||||||
| Warrant to purchase stock | 81,257 | |||||
| Exercise price per share | $ 9.23 | |||||
| Estimated fair value upon issuance of warrants | $ 600 | |||||
| Debt, current | $ 6,300 | $ 6,300 | ||||
| Debt, non-current | $ 18,700 | $ 18,700 | ||||
| X | ||||||||||
- Definition Estimated fair value upon issuance of warrants. No definition available.
|
| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The average effective interest rate during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of interest payable on debt, including, but not limited to, trade payables. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|