Quarterly report pursuant to Section 13 or 15(d)

Bank and Other Borrowings - Additional Information (Details)

v3.21.2
Bank and Other Borrowings - Additional Information (Details)
3 Months Ended 9 Months Ended
Aug. 03, 2021
Apr. 15, 2021
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Sep. 15, 2021
USD ($)
Sep. 15, 2021
EUR (€)
Apr. 15, 2021
EUR (€)
Dec. 31, 2020
USD ($)
Bank and Other Borrowings [Line Items]                    
Line of credit facility, maximum borrowing capacity     $ 7,400,000   $ 7,400,000         $ 7,700,000
Line of credit facility, used     $ 5,500,000   $ 5,500,000         $ 5,300,000
Weighted average interest rate     1.29%   1.29%          
Interest expense     $ 172,000 $ 206,000 $ 542,000 $ 623,000        
New General Unsecured Loan Agreement                    
Bank and Other Borrowings [Line Items]                    
Debt instrument term   6 years                
Debt instrument, payment terms         The loan will have a duration of six (6) years starting from the date of disbursement and will have to be repaid in half-yearly installments starting after a two-year pre-amortization period.          
New General Unsecured Loan Agreement | Simest S.p.A                    
Bank and Other Borrowings [Line Items]                    
Debt instrument face amount   $ 3,600,000             € 3,000,000.0  
New General Unsecured Loan Agreement | Fund for Integrated Promotion                    
Bank and Other Borrowings [Line Items]                    
Debt instrument face amount   505,000         $ 208,000 € 176,000 422,000  
New General Unsecured Loan Agreement | Fund 394/81                    
Bank and Other Borrowings [Line Items]                    
Debt instrument face amount   $ 3,100,000         $ 1,300,000 € 1,100,000 € 2,600,000  
Debt instrument, subsidized interest rate   0.055%             0.055%  
Debt instrument, reference interest rate   0.55%             0.55%  
Minimum                    
Bank and Other Borrowings [Line Items]                    
Interest variable rates         0.60%          
Maximum                    
Bank and Other Borrowings [Line Items]                    
Interest variable rates         7.60%          
Kaleyra Incorporation | Unsecured Loan Agreement | Intesa San Paolo S.p.A.                    
Bank and Other Borrowings [Line Items]                    
Percentage of incremental interest rate on future payments of interest 0.50%       0.50%          
Debt instrument subject to early reimbursement         $ 0