Annual report pursuant to Section 13 and 15(d)

Transactions with Related Parties - Additional Information (Details)

v3.20.1
Transactions with Related Parties - Additional Information (Details)
12 Months Ended 36 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
Nov. 30, 2019
USD ($)
Loan
Related Party Transaction [Line Items]        
Notes payable outstanding amount due $ 9,414,000      
Outstanding obligation for preference shares   $ 1,339,000 $ 1,339,000  
Esse Effe | Consulting Services        
Related Party Transaction [Line Items]        
Cost incurred for related party services 0 118,000    
Outstanding amount due 0 35,000 35,000  
Studio Legale Chiomenti | Legal Services        
Related Party Transaction [Line Items]        
Cost incurred for related party services 694,000 204,000    
Directors and Executive Managers        
Related Party Transaction [Line Items]        
Outstanding amount of loans granted 22,000 67,000 67,000  
Number of loans granted | Loan       2
Number of loans reimbursed | Loan       1
Loan reimbursement       $ 36,000
Interest income earned 600 700    
Executive Managers        
Related Party Transaction [Line Items]        
Outstanding obligation for preference shares 1,800,000      
Executive Managers, Relating to Preference Shares        
Related Party Transaction [Line Items]        
Compensation expense for related party 360,000      
Esse Effe and Maya        
Related Party Transaction [Line Items]        
Notes payable outstanding amount due 15,000,000      
Sponsor and Gig Founders, LLC        
Related Party Transaction [Line Items]        
Notes payable outstanding amount due 1,900,000      
Alessandra Levy | Kaleyra S.p.A        
Related Party Transaction [Line Items]        
Cost incurred for related party services 239,000   638,000  
Cumulative value for service contracts   481,000    
Remuneration paid for obtaining service contracts 0      
Accrued Interest | Esse Effe and Maya        
Related Party Transaction [Line Items]        
Notes payable outstanding amount due 43,000 0 0  
Accrued Interest | Sponsor and Gig Founders, LLC        
Related Party Transaction [Line Items]        
Notes payable outstanding amount due $ 5,000 $ 0 $ 0