Receivables, Net (Tables)

12 Months Ended

Dec. 31, 2017

Receivables, Net

Schedule of receivables

Receivables consisted of the following (dollars in thousands):

	December 31,
	2017		2016
Customers and other	$	36,118	$	37,408
Allowance for doubtful accounts		(3,889)		(4,031)
	$	32,229	$	33,377

Summary of activity for the allowance for doubtful accounts

The following is a summary of activity for the allowance for doubtful accounts (dollars in thousands):

			Additional
			Charges to		Deductions
	Beginning		Costs and		from		Ending
	Balance		Expenses		Allowance		Balance
January 1 to December 31, 2017	$	4,031	$	3,797	$	(3,939)	$	3,889
January 1 to December 31, 2016		3,931		4,031		(3,931)		4,031
January 1 to December 31, 2015		3,755		3,648		(3,472)		3,931