Business Segment, Geographic and Major Customer Information (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Summary of financial information regarding reportable segments

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

For the three months ended September 30,	Energy Chemistry Technologies		Consumer and Industrial Chemistry Technologies		Corporate and Other			Total
2018
Net revenue from external customers	$	53,709	$	17,280	$	—		$	70,989
Income (loss) from operations	3,920		858		(8,000		)	(3,222		)
Depreciation and amortization	1,734		699		524			2,957
Capital expenditures	302		171		861			1,334
2017
Net revenue from external customers	$	61,167	$	18,291	$	—		$	79,458
Income (loss) from operations	6,867		985		(10,955		)	(3,103		)
Depreciation and amortization	1,863		590		614			3,067
Capital expenditures	324		682		641			1,647

For the nine months ended September 30,	Energy Chemistry Technologies			Consumer and Industrial Chemistry Technologies		Corporate and Other			Total
2018
Net revenue from external customers	$	134,324		$	56,267	$	—		$	190,591
Income (loss) from operations	(34,175		)	3,937		(26,270		)	(56,508		)
Depreciation and amortization	5,300			2,049		1,635			8,984
Capital expenditures	2,480			767		1,314			4,561
2017
Net revenue from external customers	$	187,807		$	56,782	$	—		$	244,589
Income (loss) from operations	24,715			5,906		(35,598		)	(4,977		)
Depreciation and amortization	5,507			1,752		1,832			9,091
Capital expenditures	2,794			1,580		1,781			6,155

Assets of the Company by reportable segments are as follows (in thousands):

	September 30, 2018		December 31, 2017
Energy Chemistry Technologies	$	145,853	$	172,799
Consumer and Industrial Chemistry Technologies	132,381		116,600
Corporate and Other	15,068		35,491
Total segments	293,302		324,890
Held for sale	—		4,998
Total assets	$	293,302	$	329,888

Schedule of revenue by geographic location

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

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
U.S.	$	45,269	$	66,638	$	137,915	$	203,123
Other countries *	25,720		12,820		52,676		41,466
Total	$	70,989	$	79,458	$	190,591	$	244,589

* During the three months ended September 30, 2018, revenue for products used and services provided in Saudi Arabia was $13.2 million, or 18.6% of total quarterly revenue.

Schedule of revenue by major customer

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

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018	2017
Customer A	19.4	%	*		*	*
Customer B	*		13.3	%	*	12.9	%

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