Annual report pursuant to Section 13 and 15(d)

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

v3.19.1
Property and Equipment - Summary of Property and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Cost $ 755  
Accumulated Depreciation 720  
Net Book Value 35 $ 59
Computer equipment [Member]    
Property, Plant and Equipment [Line Items]    
Cost 258  
Accumulated Depreciation 230  
Net Book Value 28  
Furniture and fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Cost 90  
Accumulated Depreciation 90  
Leasehold improvements [Member]    
Property, Plant and Equipment [Line Items]    
Cost 55  
Accumulated Depreciation 53  
Net Book Value 2  
Computer software [Member]    
Property, Plant and Equipment [Line Items]    
Cost 328  
Accumulated Depreciation 323  
Net Book Value 5  
Equipment under capital lease [Member]    
Property, Plant and Equipment [Line Items]    
Cost 24  
Accumulated Depreciation $ 24