XML 54 R40.htm IDEA: XBRL DOCUMENT v3.19.1
Property and Equipment, Net (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross $ 782
Accumulated depreciation and amortization (777)
Total property and equipment, net 5
Equipment, Computer Hardware And Software [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross 320
Furniture And Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross 350
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross $ 112