Business Segment, Geographic and Major Customer Information - Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Summarized financial information regarding reportable segments
Revenue from external customers	$ 8,847	$ 12,739	$ 29,782	$ 41,035
Revenue from related party	1,332	0	1,332	0
Income (loss) from operations, including impairment	632	(45,594)	(15,073)	(125,911)
Depreciation and amortization	233	518	793	3,177
Additions to long-lived assets	0	906	31	906
Operating Segments | Chemistry Technologies
Summarized financial information regarding reportable segments
Revenue from external customers	8,044	12,083	26,033	39,462
Revenue from related party	1,332	0	1,332	0
Income (loss) from operations, including impairment	4,399	(8,880)	(3,009)	(75,137)
Depreciation and amortization	215	244	739	2,300
Additions to long-lived assets	0	906	31	906
Operating Segments | Data Analytics
Summarized financial information regarding reportable segments
Revenue from external customers	803	656	3,749	1,573
Revenue from related party	0	0	0	0
Income (loss) from operations, including impairment	(1,071)	(34,035)	(2,138)	(35,185)
Depreciation and amortization	17	274	52	405
Additions to long-lived assets	0	0	0	0
Corporate and Other
Summarized financial information regarding reportable segments
Revenue from external customers	0	0	0	0
Revenue from related party	0	0	0	0
Income (loss) from operations, including impairment	(2,696)	(2,679)	(9,926)	(15,589)
Depreciation and amortization	1	0	2	472
Additions to long-lived assets	$ 0	$ 0	$ 0	$ 0