Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2017

Accounts, Notes, Loans and Financing Receivable

Schedule Of Accounts Receivable, Net

Accounts receivable at December 31, 2017 and 2016 are summarized as follows:

	2017			2016
Trade	$	74,514		$	64,707
Allowance for doubtful accounts	(2,151		)	(1,417		)
	72,363			63,290
Other	4,219			3,342
	$	76,582		$	66,632

Operating Segments

Accounts, Notes, Loans and Financing Receivable

Schedule Of Accounts Receivable, Net

The Company’s customers are principally in the transportation and energy infrastructure sectors. At December 31, 2017 and 2016, trade receivables, net of allowance for doubtful accounts, from customers were as follows:

	2017		2016
Rail Products and Services	$	31,225	$	29,552
Construction Products	20,070		20,531
Tubular and Energy Services	21,068		13,207
	$	72,363	$	63,290