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Selected Balance Sheet Information (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,302 $ 1,301
Less accumulated depreciation and amortization (695) (429)
Total 607 872
Computers and office equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 852 851
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 439 439
Software [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 11 $ 11