Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Net Sales and Income from Operation by Business Segment

	2015			2014			2013
Net Sales (less intra-, inter-segment sales)
(Table only in thousands)
Environmental Segment	$	158,371		$	127,707		$	101,150
Energy Segment		142,150			70,285			69,355
Fluid Handling and Filtration Segment		67,610			65,638			25,199
Corporate and Other (1)		(709	)		(413	)		1,613
Net sales	$	367,422		$	263,217		$	197,317

(1) Includes adjustment for revenue on intercompany jobs.

	2015			2014			2013
Income (Loss) from Operations
(Table only in thousands)
Environmental Segment	$	17,021		$	16,803		$	15,422
Energy Segment		3,488			7,799			9,336
Fluid Handling and Filtration Segment		11,741			13,188			1,443
Corporate and Other (2)		(26,592	)		(14,297	)		(17,756	)
Eliminations		(709	)		(1,830	)		(1,473	)
Income from operations	$	4,949		$	21,663		$	6,972

(2) Includes corporate compensation, professional services, information technology, acquisition and integration expenses, and other general and administrative corporate expenses.

Property and Equipment Additions, Depreciation and Amortization and Identifiable Assets

	December 31,
	2015		2014		2013
Property and Equipment Additions
(Table only in thousands)
Environmental Segment	$	166	$	486	$	266
Energy Segment		429		136		476
Fluid Handling and Filtration Segment		150		486		628
Corporate and Other		18		43		7
Property and equipment additions	$	763	$	1,151	$	1,377

	2015		2014		2013
Depreciation and Amortization
(Table only in thousands)
Environmental Segment	$	4,443	$	2,263	$	1,264
Energy Segment		5,293		2,329		2,174
Fluid Handling and Filtration Segment		6,331		6,545		3,048
Corporate and Other		453		131		161
Depreciation and amortization	$	16,520	$	11,268	$	6,647

	December 31,
	2015		2014
Identifiable Assets
(Table only in thousands)
Environmental Segment	$	135,171	$	135,392
Energy Segment		283,002		92,845
Fluid Handling and Filtration Segment		161,394		168,605
Corporate and Other (3)		19,252		15,265
Identifiable assets	$	598,819	$	412,107

(3) Corporate assets primarily consist of cash and income tax related assets.

Goodwill

	December 31,
	2015		2014
(Table only in thousands)
Environmental Segment	$	55,031	$	55,031
Energy Segment		72,075		17,773
Fluid Handling and Filtration Segment		93,057		93,057
Goodwill	$	220,163	$	165,861

Intra-Segment and Inter-Segment Revenues

The Company has multiple divisions that sell to each other within segments (intra-segment sales) and between segments (inter-segment sales) as indicated in the following tables:

	Year Ended December 31, 2015
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Environmental			Energy			FHF			Corp and Other			Net Sales to Outside Customers
Net Sales
(Table only in thousands)
Environmental Segment	$	167,247	$	(6,744	)	$	—		$	(1,937	)	$	(195	)	$	—		$	158,371
Energy Segment		147,661		(4,876	)		(635	)		—			—			—			142,150
Fluid Handling and Filtration Segment		70,084		(2,277	)		(197	)		—			—			—			67,610
Corporate and Other (4)		—		—			—			—			—			(709	)		(709	)
Net Sales	$	384,992	$	(13,897	)	$	(832	)	$	(1,937	)	$	(195	)	$	(709	)	$	367,422

	Year Ended December 31, 2014
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Environmental			Energy			FHF			Corp and Other			Net Sales to Outside Customers
Net Sales
(Table only in thousands)
Environmental Segment	$	136,544	$	(7,089	)	$	—		$	(1,403	)	$	(345	)	$	—		$	127,707
Energy Segment		76,302		(5,964	)		(53	)		—			—			—			70,285
Fluid Handling and Filtration Segment		67,558		(1,845	)		(75	)		—			—			—			65,638
Corporate and Other (4)		—		—			—			—			—			(413	)		(413	)
Net Sales	$	280,404	$	(14,898	)	$	(128	)	$	(1,403	)	$	(345	)	$	(413	)	$	263,217

	Year Ended December 31, 2013
						Less Inter-Segment Sales
	Total Sales		Intra - Segment Sales			Environmental			Energy			FHF			Corp and Other		Net Sales to Outside Customers
Net Sales
(Table only in thousands)
Environmental Segment	$	108,939	$	(6,552	)	$	—		$	(831	)	$	(406	)	$	—	$	101,150
Energy Segment		71,455		(1,921	)		(179	)		—			—			—		69,355
Fluid Handling and Filtration Segment		26,181		(721	)		(261	)		—			—			—		25,199
Corporate and Other (4)		1,478		—			—			—			—			135		1,613
Net Sales	$	208,053	$	(9,194	)	$	(440	)	$	(831	)	$	(406	)	$	135	$	197,317

(4) Includes adjustment for revenue on intercompany jobs.