Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Net Sales and Operating Income (Loss) by Business Segment

	2014			2013		2012
Net Sales (less intra-, inter-segment sales)
(Table only in thousands)
Air Pollution Control Segment	$	127,707		$	101,150	$	88,582
Energy Segment		70,285			69,355		40,194
Fluid Handling and Filtration Segment		65,638			25,199		6,191
Corporate and Other (1)		(413	)		1,613		85
Net sales	$	263,217		$	197,317	$	135,052

(1) Includes adjustment for revenue on intercompany jobs.

	2014			2013			2012
Income (Loss) from Operations
(Table only in thousands)
Air Pollution Control Segment	$	16,803		$	15,422		$	14,635
Energy Segment		7,799			9,336			7,574
Fluid Handling and Filtration Segment		13,188			1,443			998
Corporate and Other (2)		(14,297	)		(17,756	)		(6,460	)
Eliminations		(1,830	)		(1,473	)		(64	)
Income from operations	$	21,663		$	6,972		$	16,683

(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,
	2014		2013		2012
Property and Equipment Additions
(Table only in thousands)
Air Pollution Control Segment	$	486	$	266	$	225
Energy Segment		136		476		26
Fluid Handling and Filtration Segment		486		628		—
Corporate and Other		43		7		22
Property and equipment additions	$	1,151	$	1,377	$	273

	2014		2013		2012
Depreciation and Amortization
(Table only in thousands)
Air Pollution Control Segment	$	2,263	$	1,264	$	747
Energy Segment		2,329		2,174		255
Fluid Handling and Filtration Segment		6,545		3,048		36
Corporate and Other		131		161		212
Depreciation and amortization	$	11,268	$	6,647	$	1,250

	December 31,
	2014		2013
Identifiable Assets
(Table only in thousands)
Air Pollution Control Segment	$	133,899	$	74,556
Energy Segment		91,850		76,960
Fluid Handling and Filtration Segment		172,779		186,320
Corporate and Other (3)		15,837		11,374
Identifiable assets	$	414,365	$	349,210

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

Goodwill

	December 31,
	2014		2013
(Table only in thousands)
Air Pollution Control Segment	$	53,538	$	22,657
Energy Segment		16,778		14,174
Fluid Handling and Filtration Segment		97,231		97,231
Goodwill	$	167,547	$	134,062

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, 2014
						Less Inter-Segment Sales
	Total Sales		Intra-Segment Sales			APC			Energy			FHF			Corp and Other			Net Sales to Outside Customers
Net Sales
(Table only in thousands)
Air Pollution Control 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			APC			Energy			FHF			Corp and Other		Net Sales to Outside Customers
Net Sales
(Table only in thousands)
Air Pollution Control 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

	Year Ended December 31, 2012
						Less Inter-Segment Sales
	Total Sales		Intra-Segment Sales			APC			Energy			FHF			Corp and Other		Net Sales to Outside Customers
Net Sales
(Table only in thousands)
Air Pollution Control Segment	$	95,358	$	(5,451	)	$	—		$	(346	)	$	(979	)	$	—	$	88,582
Energy Segment		40,650		(7	)		(449	)		—			—			—		40,194
Fluid Handling and Filtration Segment		6,229		—			(38	)		—			—			—		6,191
Corporate and Other (4)		19		—			—			—			—			66		85
Net Sales	$	142,256	$	(5,458	)	$	(487	)	$	(346	)	$	(979	)	$	66	$	135,052

(4) Includes adjustment for revenue on intercompany jobs.