Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment, Net - Additional Information (Detail)

v3.19.1
Property and Equipment, Net - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Property, Plant and Equipment [Abstract]    
Fully depreciated computer software and hardware equipment and furniture, fixtures and equipment write-off $ 233,000 $ 784,000
Property and equipment additions incurred but not yet paid $ 473,000 $ 180,000