Business Segment, Geographic and Major Customer Information (Tables)

3 Months Ended

Mar. 31, 2020

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 March 31,	Energy Chemistry Technologies			Corporate and Other			Total
2020
Net revenue from external customers	$	19,416		$	—		$	19,416
Loss from operations, including impairment	(70,269		)	184			(70,085		)
Depreciation and amortization	1,809			382			2,191
Capital expenditures	42			—			42
2019
Net revenue from external customers	$	43,256		$	—		$	43,256
Loss from operations	(4,703		)	(8,932		)	(13,635		)
Depreciation and amortization	1,785			475			2,260
Capital expenditures	461			—			461

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

	March 31, 2020		December 31, 2019
Energy Chemistry Technologies	$	45,883	$	116,110
Corporate and Other	90,891		114,490
Total assets	136,774		230,600

Schedule of revenue by geographic location

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

            

	Three months ended March 31,
	2020		2019
U.S.	$	15,775	$	38,875
Other countries	3,641		4,381
Total	$	19,416	$	43,256

Schedule of revenue by major customer

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

	Three months ended March 31,
	2020		2019
Customer A	39.9	%	*
Customer B	17.9	%	19.0	%
Customer C	*		12.6	%

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