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Borrowings - PPP Loan - Additional Information (Detail) - USD ($) |  | 6 Months Ended |
--- | --- | --- | ---
Apr. 10, 2020 | Jun. 30, 2020 | Dec. 31, 2019
Debt Instrument [Line Items] |  |  |
Proceeds from Paycheck Protection Program loan |  | $ 4,873,000 |
Short-term notes payable |  | 5,387,000 | $ 5,028,000
Paycheck Protection Program loan — long term |  | $ 2,030,000 |
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, date of first required interest payment | Nov. 09, 2020 |  |
Debt instrument principal payment | $ 1,400,000 |  |
Debt instrument, payment terms | On November 9, 2020, the Company may be required to pay the lender $1.4 million of principal and interest, including six months of payments deferred in accordance with the terms of the PPP Loan, and equal monthly payments of principal and interest thereafter as required to fully amortize the remaining principal amount by April 9, 2022 |  |
Debt instrument, prepayment penalties | $ 0 |  |
Short-term notes payable |  | $ 2,900,000 |
Paycheck Protection Program loan — long term |  | $ 2,000,000.0 |

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