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Notes Payable - Schedule of Notes Payable (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 06, 2018
Jun. 01, 2018
May 23, 2018
Dec. 31, 2017
Principal $ 3,199        
Discount (1,348)        
Net 1,851      
May 2018 Notes [Member]          
Principal 400     $ 840  
Discount (25)        
Net 375        
June 2018 Note [Member]          
Principal 2,448   $ 3,600    
Discount (1,237)        
Net 1,211        
December 2018 Note [Member]          
Principal 351 $ 598      
Discount (86)        
Net $ 265