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Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2022
Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
VICOR CORPORATION
SCHEDULE II
VALUATION AND QUALIFYING ACCOUNTS
Years ended December 31, 2022, 2021 and 2020
 
Description
   
Balance at

Beginning

of Period
     
Charge

(Recovery) to

Costs and

Expenses
     
Other Charges,

Deductions (1)
     
Balance at

End of Period
  
Allowance for doubtful accounts:
                                    
Year ended:
                                    
December 31, 2022
    $ 82,000      $ 5,000      $ —        $ 87,000  
December 31, 2021
      82,000        —          —          82,000  
December 31, 2020
      59,000        23,000        —          82,000  
 
(1)
Reflects uncollectible accounts written off, net of recoveries.