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Restricted Stock, Stock Options and Other Stock Plans - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Weighted-average remaining contractual term of unexercised stock options (in years) |  |  | 7 years |  |
Unrecognized compensation cost related to stock options and restricted stock awards | $ 1.6 |  | $ 1.6 |  | $ 0.6
Stock options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares issued by the company (in shares) | 0 | 20,000 | 0 | 114,431 |
Restricted stock awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares issued by the company (in shares) |  | 184,463 | 630,352 | 242,251 |

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