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Research and development
 12 Months Ended
Dec. 31, 2021
Research and development [Abstract]  
Research and development

Note 17. Research and development

     

Year Ended December 31,
   

2021

  

2020

  

2019

Payroll and related expenses

  

$

53,683

  

$

45,716

  

 

39,142

Rent and maintenance

  

 

1,851

  

 

2,117

  

 

1,721

Subcontractors and projects

  

 

3,482

  

 

2,676

  

 

2,398

Travel and entertainment

  

 

185

  

 

20

  

 

314

Vehicle costs

  

 

232

  

 

270

  

 

355

Recruiting expenses

  

 

178

  

 

127

  

 

222

Depreciation and amortization

  

 

2,100

  

 

1,813

  

 

1,135

Other

  

 

3,830

  

 

1,638

  

 

1,286
   

$

65,541

  

$

54,377

  

$

46,573