Receivables (Tables)

12 Months Ended

Dec. 31, 2014

Receivables

Schedule of receivables

        Receivables consisted of the following (dollars in thousands):

	December 31,
	2014			2013
Customers and other	$	36,417		$	38,463
Allowance for doubtful accounts		(3,755	)		(3,942	)
	$	32,662		$	34,521

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):

	Beginning Balance		Additional Charges to Costs and Expenses		Deductions from Allowance			Ending Balance
January 1 to December 31, 2014	$	3,942	$	3,590	$	(3,777	)	$	3,755
January 1 to December 31, 2013		2,631		3,455		(2,144	)		3,942
January 1 to December 31, 2012		2,924		716		(1,009	)		2,631