Segment Information (Tables)

6 Months Ended

Jun. 30, 2017

Segment Information

Schedule of results of operations by segment

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Net sales
Activated Carbon	$	135,677	$	123,515	$	261,908	$	233,498
Alternative Materials		12,930		2,644		25,778		5,129
Advanced Water Purification		4,391		6,438		8,015		14,169
Consolidated net sales	$	152,998	$	132,597	$	295,701	$	252,796
Income (loss) from operations
Activated Carbon	$	11,509	$	12,526	$	20,030	$	21,220
Alternative Materials		567		395		(237)		822
Advanced Water Purification		(1,055)		(750)		(2,874)		(1,408)
		11,021		12,171		16,919		20,634
Reconciling items:
Interest income		26		29		32		35
Interest expense		(2,021)		(228)		(3,535)		(561)
Other income (expense) — net		5		(20)		505		203
Income before income tax provision	$	9,031	$	11,952	$	13,921	$	20,311
Depreciation and amortization
Activated Carbon	$	10,388	$	8,941	$	20,568	$	17,236
Alternative Materials		1,356		163		2,625		303
Advanced Water Purification		256		357		595		697
	$	12,000	$	9,461	$	23,788	$	18,236

Schedule of total assets by segment

	June 30, 2017		December 31, 2016
Activated Carbon	$	407,890	$	387,117
Alternative Materials		73,558		67,394
Advanced Water Purification		19,052		18,790
Segment assets		500,500		473,301
Unallocated assets		320,116		301,917
Total assets	$	820,616	$	775,218