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Financial Instruments (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Financial assets    
Loan $ 2,000
Financial liabilities    
Warrants 554
Level 1 [Member]    
Financial assets    
Loan  
Financial liabilities    
Warrants  
Level 2 [Member]    
Financial assets    
Loan  
Financial liabilities    
Warrants  
Level 3 [Member]    
Financial assets    
Loan $ 2,000  
Financial liabilities    
Warrants   $ 554