Business Segment, Geographic and Major Customer Information (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Financial information regarding reportable segments

Summarized financial information of the reportable segments is as follows (in thousands):

As of and for the three months ended March 31,	Energy Chemistry Technologies		Consumer and Industrial Chemistry Technologies		Drilling Technologies			Production Technologies			Corporate and Other			Total
2015
Net revenue from external customers	$	46,643	$	13,463	$	18,694		$	3,573		$	—		$	82,373
Gross margin	16,100		3,706		5,991			730			—			26,527
Income (loss) from operations	6,821		2,381		(637		)	(539		)	(9,315		)	(1,289		)
Depreciation and amortization	1,204		552		2,319			125			370			4,570
Total assets	152,423		92,438		141,229			25,176			3,741			415,007
Capital expenditures	2,361		22		2,124			638			445			5,590
2014
Net revenue from external customers	$	62,377	$	13,030	$	24,901		$	2,267		$	—		$	102,575
Gross margin	29,220		4,033		9,788			640			—			43,681
Income (loss) from operations	21,623		2,335		3,317			(79		)	(8,398		)	18,798
Depreciation and amortization	1,067		433		2,437			70			212			4,219
Total assets	137,638		93,217		136,141			14,864			8,656			390,516
Capital expenditures	1,386		14		3,296			61			233			4,990

Revenue by geographic location

Revenue by geographic location is as follows (in thousands):

	Three months ended March 31,
	2015		2014
U.S.	$	64,195	$	87,331
Other countries	18,178		15,244
Total	$	82,373	$	102,575

Revenue by Major Customer

Revenue from major customers, as a percentage of consolidated revenue, is as follows:

	Three months ended March 31,
	2015		2014
Customer A	12.0	%	*
Customer B	10.3	%	15.4	%

* This customer did not account for more than 10% of revenue during the period.