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SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS
MASTECH DIGITAL, INC.
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS
FOR THE YEARS ENDED DECEMBER 31, 2020, 2019 AND 2018
(Amounts in thousands)
 
   
Balance at
beginning
of period
   
Charged
to expense
(credited)
   
Acquisitions/

Recoveries/

(Write-offs)
   
Balance
at end
of period
 
Allowance for Doubtful Accounts:
                    
Year ended December 31, 2020
  $338   $—     $75   $413 
Year ended December 31, 2019
   408    80    (150)    338 
Year ended December 31, 2018
   398    10    —      408