Business Segments (Tables)

9 Months Ended

Sep. 30, 2014

Business Segments [Abstract]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

		Three Months Ended				Nine Months Ended
		September 30, 2014				September 30, 2014
		Net		Segment		Net		Segment
		Sales		Profit		Sales		Profit
Rail Products	$	102,105	$	11,533	$	283,085	$	23,685
Construction Products		49,907		3,251		119,100		7,838
Tubular Products		15,785		1,661		43,858		4,973
Total	$	167,797	$	16,445	$	446,043	$	36,496

		Three Months Ended				Nine Months Ended
		September 30, 2013				September 30, 2013
		Net		Segment		Net		Segment
		Sales		Profit		Sales		Profit
Rail Products	$	105,552	$	9,713	$	277,843	$	21,749
Construction Products		49,320		2,855		129,828		5,373
Tubular Products		7,376		985		33,834		8,139
Total	$	162,248	$	13,553	$	441,505	$	35,261

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
Income for reportable segments	$	16,445	$	13,553	$	36,496	$	35,261
Interest expense		(126)		(118)		(375)		(376)
Interest income		140		149		431		494
Other income		47		638		297		953
LIFO income		302		553		500		299
Equity in income of nonconsolidated investments		477		296		823		892
Corporate expense, cost of capital elimination, and other unallocated charges		(3,423)		(1,049)		(8,782)		(4,962)
Income from continuing operations before income taxes	$	13,862	$	14,022	$	29,390	$	32,561