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Schedule of Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2021
Schedule of Valuation and Qualifying Accounts
Column A
 
Column B
 
 
Column C
 
 
Column D
 
 
Column E
 
 
 
Balance at
beginning
of period
 
 
Charged to costs
and expenses
 
 
Charged to other
accounts
 
 
Deductions
 
 
Balance at end
of period
 
Allowance for doubtful accounts:
                                       
Year ended December 31, 2021
  $ 200     $ (8   $     $
(28
)
 
  $ 164  
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Year ended December 31, 2020
  $ 209     $ (11   $
2
    $     $ 200  
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Year ended December 31, 2019
  $ 232     $ (16 )     $     $ (7   $ 209  
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Allowance in respect of carryforward tax losses and deductions that may not be utilized:
                                       
Year ended December 31, 2021
  $ 2,547     $ 336     $     $ (160   $ 2,723  
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Year ended December 31, 2020
  $ 1,974     $ 670     $     $ (97   $ 2,547  
   
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Year ended December 31, 2019
  $ 1,633     $ 555     $     $ (214   $ 1,974