Business Segments (Tables)

3 Months Ended

Mar. 31, 2015

Business Segments [Abstract]

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

		Three Months Ended				Three Months Ended
		March 31, 2015				March 31, 2014
		Net		Segment		Net		Segment
		Sales		Profit		Sales		Profit
Rail Products and Services	$	77,676	$	6,072	$	73,496	$	5,316
Construction Products		34,290		1,228		27,383		1,216
Tubular and Energy Services		25,941		1,958		10,535		586
Total	$	137,907	$	9,258	$	111,414	$	7,118

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

		Three Months Ended
		March 31,
		2015		2014
Income for reportable segments	$	9,258	$	7,118
Interest expense		(613)		(123)
Interest income		57		144
Other income		803		135
LIFO expense		(6)		(4)
Equity in income of nonconsolidated investments		173		204
Corporate expense, cost of capital elimination, and other unallocated charges		(3,007)		(2,153)
Income before income taxes	$	6,665	$	5,321

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

		March 31,		December 31,
		2015		2014
Rail Products and Services	$	248,870	$	239,951
Construction Products		93,617		102,978
Tubular and Energy Services		323,472		130,289
Unallocated corporate assets		38,062		30,192
LIFO		(8,295)		(8,289)
Total	$	695,726	$	495,121