Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2013

Accounts, Notes, Loans and Financing Receivable [Line Items]

Schedule Of Accounts Receivable, Net [Table Text Block]

		2013		2012
Trade	$	98,474	$	59,308
Allowance for doubtful accounts		(1,099)		(899)
		97,375		58,409
Other		1,062		1,264
	$	98,437	$	59,673

Operating Segments [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Schedule Of Accounts Receivable, Net [Table Text Block]

		2013		2012
Rail Products	$	57,342	$	34,886
Construction Products		35,711		18,677
Tubular Products		4,322		4,846
	$	97,375	$	58,409