Quarterly report pursuant to Section 13 or 15(d)

Restructuring Costs - Additional Information (Detail)

v3.20.2
Restructuring Costs - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2019
Restructuring Costs [Abstract]      
Severance and other charges $ 436,000    
Stock-based compensation   $ 3,638,000 $ 6,565,000
Restructuring and severance cost liabilities 261,000 261,000  
Soybean Products [Member]      
Restructuring Costs [Abstract]      
Severance and other charges 400,000    
Stock-based compensation 900,000    
Restructuring and severance cost liabilities 300,000 300,000  
Soybean Products [Member] | Employee Severance and Other Related Payments [Member] | Maximum [Member]      
Restructuring Costs [Abstract]      
Restructuring and related cost, expected cost remaining 300,000 300,000  
Soybean Products [Member] | Transitional Expenses [Member]      
Restructuring Costs [Abstract]      
Restructuring and related cost, expected cost remaining $ 600,000 $ 600,000