Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2024

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, 2024, 2023 and 2022

			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, 2024	$	130,000	$	—	$	—	$	130,000
December 31, 2023		87,000		43,000		—		130,000
December 31, 2022		82,000		5,000		—		87,000

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