Annual report pursuant to Section 13 and 15(d)

Property and Equipment - Schedule of Property and Equipment (Detail)

v3.20.1
Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 0 $ 689
Less accumulated depreciation and amortization 0 (535)
Total 0 154
Furniture and fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 0 334
Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 0 208
Leasehold improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 0 $ 147