Geographic Information - Additional Information (Detail) - USD ($) |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Assets | $ 27,849,000 | $ 13,690,000 |
| Argentina [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Assets | 395,000 | 4,269,000 |
| Dominican Republic [Member] | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Assets | $ 646,000 | $ 1,734,000 |