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Schedule of Property and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 554 $ 455
Accumulated depreciation (379) (310)
Property and equipment, net 175 145
Furniture, fixtures and office equipment [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 228 164
Software and technology assets [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 326 $ 291