Furniture, Equipment and Leasehold Improvements, Net - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Property Plant And Equipment [Abstract] | ||||
| Depreciation expense | $ 294 | $ 279 | $ 881 | $ 838 |
| Leased assets write off | 38 | 120 | 209 | |
| Accumulated depreciation | $ 31 | $ 95 | $ 180 | |
| X | ||||||||||
- Definition Accumulated depreciation related to leased assets written off. No definition available.
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| X | ||||||||||
- Definition Write off of leased assets. No definition available.
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| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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