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Property and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Property and Equipment [Abstract]    
Property and equipment, gross $ 160 $ 146
Less accumulated depreciation (144) (137)
Property and equipment, net 16 9
Depreciation expense 7 18
Office Furniture [Member]    
Property and Equipment [Abstract]    
Property and equipment, gross 79 79
Computer Equipment [Member]    
Property and Equipment [Abstract]    
Property and equipment, gross $ 81 $ 67