Business Segment, Geographic and Major Customer Information - Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Summarized financial information regarding reportable segments
Net revenue from external customers	$ 8,880	$ 34,692	$ 28,296	$ 77,949
Loss from operations, including impairment	(10,231)	(13,674)	(80,316)	(27,307)
Depreciation and amortization	468	2,119	2,659	4,379
Capital expenditures	0	306	42	767
Operating Segments | Chemistry Technologies
Summarized financial information regarding reportable segments
Net revenue from external customers	7,962	34,692	27,378	77,949
Loss from operations, including impairment	(3,596)	(7,651)	(66,257)	(12,984)
Depreciation and amortization	246	1,933	2,056	3,718
Capital expenditures	0	306	42	767
Operating Segments | Data Analytics
Summarized financial information regarding reportable segments
Net revenue from external customers	918		918
Loss from operations, including impairment	(1,151)		(1,151)
Depreciation and amortization	131		131
Capital expenditures	0		0
Corporate and Other
Summarized financial information regarding reportable segments
Net revenue from external customers	0	0	0	0
Loss from operations, including impairment	(5,484)	(6,023)	(12,908)	(14,323)
Depreciation and amortization	91	186	472	661
Capital expenditures	$ 0	$ 0	$ 0	$ 0