Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2014

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

Schedule Of Accounts Receivable, Net [Table Text Block]

		2014		2013
Trade	$	90,494	$	98,474
Allowance for doubtful accounts		(1,036)		(1,099)
		89,458		97,375
Other		720		1,062
	$	90,178	$	98,437

Operating Segments [Member]

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

Schedule Of Accounts Receivable, Net [Table Text Block]

		2014		2013
Rail Products	$	45,931	$	57,342
Construction Products		33,760		35,711
Tubular Products		9,767		4,322
	$	89,458	$	97,375