Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2021

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

Schedule II - Valuation and Qualifying Accounts

Schedule II - Valuation and Qualifying Accounts for the years ended December 31, 2021, 2020 and 2019

(Dollars in thousands)

				Additions
Description		Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts		Uncollectible Accounts Written-off		Balance at End of Period
2021	Accounts receivable allowance	$	100	$	(25)	$	—	$	—	$	75
2020	Accounts receivable allowance	$	357	$	(156)	$	—	$	(101)	$	100
2019	Accounts receivable allowance	$	270	$	216	$	(129)	$	—	$	357