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Cash and cash equivalents
 12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Cash and cash equivalents
8.
Cash and cash equivalents

 
  
2020
 
  
2019
 
Checking and saving accounts
  
$
99,286
 
  
$
118,367
 
Time deposits of no more than ninety days
  
 
19,500
 
  
 
40,000
 
Cash on hand
  
 
279
 
  
 
365
 
 
  
 
 
 
  
 
 
 
 
  
$
119,065
 
  
$
158,732
 
 
  
 
 
 
  
 
 
 
Time deposits earned interest based on rates determined by the banks in which the instruments are held, ranging between 0.24% and 0.35% for U.S. dollars investments until December 2020 (2019: between 1.71% and 1.98% for U.S. dollars investments).
As of December 31, 2020, the cash and cash equivalents disclosed above and in the consolidated statement of cash flows include $5.9 million that the Company has pledged from its checking and saving accounts to fulfill the collateral requirement.
As of December 31, 2020 and 2019, except for the cash pledged to fulfill collateral requirement,the Company’s cash and cash equivalents are free of restriction or charges that could limit its availability.