Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2018

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

Valuation and Qualifying Accounts

Schedule II – Valuation and Qualifying Accounts for the years ended December 31, 2018, 2017 and 2016

(Dollars in thousands)

		Balance at Beginning of Period		Additions and Deductions					Uncollectible Accounts Written-off		Balance at End of Period
Description				Charged /(Credited)  to Costs and Expenses			Charged to Other Accounts
2018	Accounts and notes receivable allowance	$	256	$	60		$	—	$	65	$	251
2017	Accounts and notes receivable allowance	$	148	$	159		$	—	$	51	$	256
2016	Accounts and notes receivable allowance	$	179	$	(21	)	$	—	$	10	$	148