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Related Party Transactions (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Aug. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Nov. 12, 2019
Jun. 28, 2019
Sep. 19, 2018
Proceeds from advance notes $ 900 $ 2,050 $ 925      
Debt instrument amount $ 5,000          
Convertible Promissory Note [Member] | Black Horse Capital LP [Member]            
Debt instrument amount           $ 2,500
Issued three short-term, secured bridge notes [Member]            
Short term debt         $ 1,700  
Issued two short-term, secured bridge notes [Member]            
Short term debt       $ 350