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Borrowings - PPP Loan - Additional Information (Detail) - USD ($) |  | 9 Months Ended
--- | --- | ---
Apr. 10, 2020 | Sep. 30, 2020
Debt Instrument [Line Items] |  |
Proceeds from Paycheck Protection Program loan |  | $ 4,873,000
US Small Business Administration |  |
Debt Instrument [Line Items] |  |
Maximum payroll cost exclude compensation of individual employee | $ 100,000 |
Forgiveness reduction in case of reduction in salaries and wages of employees with | $ 100,000 |
US Small Business Administration | Maximum |  |
Debt Instrument [Line Items] |  |
Percentage of non payroll costs | 40.00% |
Percentage of decrease in salaries and wages for employees | 25.00% |
PPP Loan |  |
Debt Instrument [Line Items] |  |
Proceeds from Paycheck Protection Program loan | $ 4,900,000 |
Maturity date | Apr. 09, 2022 |
Annual interest rate | 0.98% | 0.98%
Debt instrument, payment terms | Principal and interest payments can be deferred up to ten months after the end of the Company’s covered period unless the Company is notified earlier of its loan forgiveness status. In the event the SBA does not authorize loan forgiveness, the deferred principal and interest will be payable to the lender and the Company will then make equal monthly payments as required to fully amortize the remaining principal amount by April 9, 2022 |
Debt instrument, prepayment penalties | $ 0 |

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