Segment Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Information

Schedule of results of operations by segment

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Net sales:
Activated Carbon and Service	$	121,330		$	124,372		$	367,644		$	372,043
Equipment	9,659			10,803			30,003			33,107
Consumer	1,987			2,524			6,484			9,313
	$	132,976		$	137,699		$	404,131		$	414,463
Income (loss) from operations before restructuring:
Activated Carbon and Service	$	18,054		$	20,010		$	55,696		$	58,537
Equipment	(1,278		)	(1,481		)	(2,680		)	(4,587		)
Consumer	192			312			1,037			1,592
	16,968			18,841			54,053			55,542
Reconciling items:
Restructuring income	—			27			—			252
Interest income	6			15			51			56
Interest expense	(254		)	(32		)	(500		)	(196		)
Other income (expense) — net	890			(401		)	(261		)	(1,329		)
Income before income tax provision	$	17,610		$	18,450		$	53,343		$	54,325
Depreciation and amortization:
Activated Carbon and Service	$	7,954		$	6,742		$	23,461		$	19,484
Equipment	514			698			1,864			2,188
Consumer	156			130			463			452
	$	8,624		$	7,570		$	25,788		$	22,124