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Long-Term Debt - Additional Information (Detail) - Paycheck Protection Program Loan CARES Act [Member] - USD ($) |  |  | 3 Months Ended
--- | --- | --- | ---
Apr. 08, 2021 | Apr. 19, 2020 | Mar. 31, 2021
Debt Instrument [Line Items] |  |  |
Loan, face amount |  | $ 1,500,000 |
Loan, interest rate |  | 1.00% |
Loan, maturity date |  | 2022-04 |
Prepayment penalties |  | $ 0 |
Forgiveness eligibility description |  |  | In order to be eligible for forgiveness, the proceeds of the Paycheck Protection Program loan must be applied to certain eligible expenses, including payroll costs, interest on certain mortgage obligations, rent payments on certain leases, and certain qualified utility payments, with not more than 40 percent of the amount applied to non-payroll costs.
Subsequent Event [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Description of loan forgiveness status | We have applied the proceeds from the Paycheck Protection Program loan toward qualifying expenses. On October 21, 2020, as modified December 29, 2020, we applied for forgiveness of the full principal amount and all accrued interest, and on April 8, 2021, we were notified by the SBA that the full amount of our Paycheck Protection Program loan had been forgiven. We expect to record income in the second quarter of 2021 for the full amount of the loan and the associated accrued interest. |  |

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