Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Property and Equipment - Summary of Property and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Cost $ 674  
Accumulated Depreciation 632  
Net Book Value 42 $ 57
Computer equipment [Member]    
Property, Plant and Equipment [Line Items]    
Cost 242  
Accumulated Depreciation 229  
Net Book Value 13  
Furniture and fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Cost 42  
Accumulated Depreciation 42  
Leasehold improvements [Member]    
Property, Plant and Equipment [Line Items]    
Cost 36  
Accumulated Depreciation 22  
Net Book Value 14  
Computer software [Member]    
Property, Plant and Equipment [Line Items]    
Cost 335  
Accumulated Depreciation 331  
Net Book Value 4  
Equipment under capital lease [Member]    
Property, Plant and Equipment [Line Items]    
Cost 19  
Accumulated Depreciation 8  
Net Book Value $ 11