Quarterly report pursuant to Section 13 or 15(d)

Furniture, Equipment and Leasehold Improvements, Net - Additional Information (Detail)

v3.20.2
Furniture, Equipment and Leasehold Improvements, Net - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Property Plant And Equipment [Line Items]          
Depreciation expense $ 287 $ 385 $ 559 $ 548  
Leased assets write off 131 310 131 310  
Accumulated depreciation 9,369   9,369   $ 8,811
Leased Assets          
Property Plant And Equipment [Line Items]          
Accumulated depreciation $ 102 $ 310 $ 102 $ 310