Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Other Intangible Assets [Abstract]

Schedule of Goodwill [Table Text Block]

		Rail Products and Services		Construction Products		Tubular and Energy Services		Total
Balance at December 31, 2014	$	38,956	$	5,147	$	38,846	$	82,949
Acquisitions		9,594		-		69,908		79,502
Foreign currency translation impact		(362)		-		-		(362)
Impairment charges		-		-		(80,337)		(80,337)
Balance at December 31, 2015	$	48,188	$	5,147	$	28,417	$	81,752

Schedule of Intangible Assets [Table Text Block]

		2015		2014
Rail Products and Services	$	59,226	$	44,781
Construction Products		1,348		3,178
Tubular and Energy Services		98,166		47,812
	$	158,740	$	95,771

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31, 2015
	Weighted Average		Gross				Net
	Amortization Period		Carrying		Accumulated		Carrying
	In Years		Value		Amortization		Amount
Non-compete agreements	4	$	6,984	$	(2,495)	$	4,489
Patents	10		378		(124)		254
Customer relationships	16		94,338		(8,441)		85,897
Supplier relationships	5		350		(335)		15
Trademarks and trade names	13		14,252		(3,025)		11,227
Technology	13		42,438		(9,393)		33,045
		$	158,740	$	(23,813)	$	134,927

	December 31, 2014
	Weighted Average		Gross				Net
	Amortization Period		Carrying		Accumulated		Carrying
	In Years		Value		Amortization		Amount
Non-compete agreements	5	$	4,143	$	(705)	$	3,438
Patents	10		564		(189)		375
Customer relationships	19		44,450		(4,679)		39,771
Supplier relationships	5		350		(268)		82
Trademarks and trade names	14		10,765		(1,855)		8,910
Technology	14		35,499		(5,941)		29,558
		$	95,771	$	(13,637)	$	82,134

Schedule of Expected Amortization Expense [Table Text Block]

		Amortization Expense
2016	$	13,093
2017		12,200
2018		11,868
2019		11,137
2020		10,706
2021 and thereafter		75,923
	$	134,927