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Discontinued Operations - Summary of Financial Results (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Loss on release of cumulative foreign currency translation adjustment     $ (26,957,000) $ 0
Income (loss) from discontinued operations $ 0 $ (6,626,000) (26,056,000) (15,862,000)
Discontinued Operations, Held-for-sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Revenue   3,150,000 1,294,000 3,900,000
Operating expenses   9,186,000 896,000 18,423,000
Operating income (loss)   (6,036,000) 398,000 (14,523,000)
Gain on sale of discontinued operations     672,000  
Loss on release of cumulative foreign currency translation adjustment     (26,957,000)  
Other expense, net   (75,000) (129,000) (497,000)
Equity in net loss of affiliates   (1,031,000) (38,000) (1,923,000)
Income (loss) before income taxes   (7,142,000) (26,054,000) (16,943,000)
Income tax benefit (expense)   516,000 (2,000) 1,081,000
Income (loss) from discontinued operations $ 0 (6,626,000) (26,056,000) (15,862,000)
TS Biotechnology Sale | Discontinued Operations, Held-for-sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Revenue   3,150,000 1,294,000 3,900,000
Operating expenses   9,069,000 896,000 18,188,000
Operating income (loss)   (5,919,000) 398,000 (14,288,000)
Gain on sale of discontinued operations     633,000  
Loss on release of cumulative foreign currency translation adjustment     (26,957,000)  
Other expense, net   (75,000) (129,000) (497,000)
Income (loss) before income taxes   (5,994,000) (26,055,000) (14,785,000)
Income tax benefit (expense)   516,000 (2,000) 1,081,000
Income (loss) from discontinued operations   (5,478,000) (26,057,000) (13,704,000)
EnviroFlight Sale | Discontinued Operations, Held-for-sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Revenue   0 0 0
Operating expenses   117,000 0 235,000
Operating income (loss)   (117,000) 0 (235,000)
Gain on sale of discontinued operations     39,000  
Loss on release of cumulative foreign currency translation adjustment     0  
Other expense, net   0 0 0
Equity in net loss of affiliates   (1,031,000) (38,000) (1,923,000)
Income (loss) before income taxes   (1,148,000) 1,000 (2,158,000)
Income tax benefit (expense)   0 0 0
Income (loss) from discontinued operations   (1,148,000) 1,000 (2,158,000)
Related Parties, Aggregated | TS Biotechnology Sale | Discontinued Operations, Held-for-sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Revenue   $ 1,208,000 $ 436,000 $ 230,000