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Subsequent events (Details Narrative)
1 Months Ended 12 Months Ended
Jan. 31, 2023
USD ($)
shares
Jan. 19, 2023
CHF (SFr)
Jun. 30, 2021
USD ($)
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2022
CHF (SFr)
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2021
CHF (SFr)
shares
Dec. 31, 2020
USD ($)
shares
Jan. 24, 2023
USD ($)
Jun. 29, 2021
USD ($)
Subsequent Event [Line Items]                    
Proceeds from convertible debt       $ 4,820,000   $ 44,362,000   $ 22,053,000    
Employees                    
Subsequent Event [Line Items]                    
Options, granted | shares       6,600 6,600 33,000 33,000 279,017    
the "Anson Facility" | Convertible Debt                    
Subsequent Event [Line Items]                    
Convertible debt                   $ 22,000,000
Proceeds from convertible debt     $ 11,000,000              
Conversion of debt           $ 9,800,000        
Conversion of debt, shares issued | shares       14,351,699 14,351,699 8,228,262 8,228,262      
the "L1 Facility" | Convertible Debt                    
Subsequent Event [Line Items]                    
Convertible debt       $ 1,266,529           $ 22,000,000
Proceeds from convertible debt     $ 11,000,000              
Line of Credit | UBS SA "Covid Loans"                    
Subsequent Event [Line Items]                    
Repayment of lines of credit | SFr         SFr 83,800   SFr 70,000      
Subsequent Events | Employees                    
Subsequent Event [Line Items]                    
Options, granted | shares 268,535                  
Subsequent Events | Anson Facility "Second Amendment" | Convertible Debt                    
Subsequent Event [Line Items]                    
Aggregate amount of loan                 $ 5,500,000  
Proceeds from convertible debt $ 1,500,000                  
Subsequent Events | the "Anson Facility" | Convertible Debt                    
Subsequent Event [Line Items]                    
Convertible debt                 $ 22,000,000  
Conversion of debt $ 500,000                  
Conversion of debt, shares issued | shares 2,599,620                  
Subsequent Events | the "L1 Facility" | Convertible Debt                    
Subsequent Event [Line Items]                    
Conversion of debt $ 900,000                  
Conversion of debt, shares issued | shares 5,700,622                  
Subsequent Events | Line of Credit | UBS SA "Covid Loans"                    
Subsequent Event [Line Items]                    
Repayment of lines of credit | SFr   SFr 185,800