Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2023

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts

VICOR CORPORATION

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

Years ended December 31, 2023, 2022 and 2021

			Charge
			(Recovery)
	Balance at		to Costs and		Other Charges,		Balance at
Description	Beginning of Period		Expenses		Deductions (1)		End of Period
Allowance for doubtful accounts:
Year ended:
December 31, 2023	$	87,000	$	43,000	$	—	$	130,000
December 31, 2022		82,000		5,000		—		87,000
December 31, 2021		82,000		—		—		82,000

(1)Reflects uncollectible accounts written off, net of recoveries.