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Schedule II
 12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II
Schedule II
Consolidated valuation and qualifying accounts and reserves for the years ended December 31, 2021, 2020 and 2019.
Reserves deducted from asset to which it applies:
Allowance for Doubtful Accounts
Additions
Balance at
Beginning of
Year		(Recovered)/
Charged to
Costs &
Expenses		Charged to
Other
Accounts
Deductions(A)
Balance at End
of Year
Year Ended December 31, 2021$41,000 $51,000 $—$2,000 $90,000 
Year Ended December 31, 2020$50,000 $27,000 $— $36,000 $41,000 
Year Ended December 31, 2019$25,000 $4,000 $36,000 $15,000 $50,000 
Customer Chargeback Allowance
Additions
Balance at
Beginning of
Year		(Recovered)/
Charged to
Costs &
Expenses		Charged to
Other
Accounts		Deductions(B)Balance at End
of Year
Year Ended December 31, 2021$179,000 $83,000 $— $40,000 $222,000 
Year Ended December 31, 2020$476,000 $291,000 $— $588,000 $179,000 
Year Ended December 31, 2019$2,344,000 $1,316,000 $— $3,184,000 $476,000 
(A)Amount represents uncollectible accounts written off.
(B)Amount represents customer returns and deductions, discounts and price adjustments accepted.