General form of registration statement for all companies including face-amount certificate companies

Debt - Additional Information (Detail)

v3.21.2
Debt - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 03, 2021
Mar. 31, 2021
Jan. 31, 2021
Apr. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Jul. 31, 2019
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount $ 26,050       $ 104 $ 26,050        
Interest rate               1.00%    
Interest Expense           3,267 $ 317 $ 522 $ 39  
Long-term Debt $ 46,755         $ 46,755   154 2,497  
Short-term Debt [Member] | First Interstate Bank [Member]                    
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount       $ 500            
Interest rate       5.25%            
Maturity date       April 2021            
Convertible Debt [Member]                    
Short-term Debt [Line Items]                    
Interest rate 8.00%         8.00%        
Interest Expense           $ 1,069        
Maturity date           February 8, 2023        
Debt instrument convertible note face amount $ 26,050                  
Debt Instrument Oustanding Principal Of Note Converts Into Common Stock At A Conversion Price Equal TO Value of Each Share Of Common Stock Percentage Under Qualified SPAC Transaction Percentage 85.00%         85.00%        
Term Loan [Member] | Cargill Financial Services International, Inc [Member]                    
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount     $ 10,000              
Interest rate     8.00%              
Maturity date     March 22, 2022              
Equity warrant coverage on the loan amount percentage     25.00%              
Warrant To Purchase Shares To Number of Shares Percentage Of Principal Amount Loan     25.00%              
Threshold Percentage of Lowest Cash Price Per Share Upon Earliest Of Transaction Used TO Determine The Warrant To Purchase Shares     85.00%              
Promissory notes [Member]                    
Short-term Debt [Line Items]                    
Long-term Debt               0 2,497  
PPP loan [Member]                    
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount         $ 104          
Interest rate         1.00%          
Debt Instrument, Term         2 years          
Long-term Debt               104 0  
Share settlement note [Member]                    
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount         $ 80          
Interest rate         0.91%          
Debt Instrument, Maturity Date         Oct. 01, 2021          
Debt Instrument, Periodic Payment         $ 5          
Long-term Debt               $ 50 $ 0  
Cargill Loan [Member]                    
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount   $ 50,000                
Long-term Debt $ 16,293         $ 16,293        
Cargill Loan [Member] | Cargill Financial [Member]                    
Short-term Debt [Line Items]                    
Long-term Line of Credit $ 16,293         $ 16,293        
Line of Credit Facility, Maximum Borrowing Capacity   $ 150,000                
Line of Credit Facility, Expiration Date   Sep. 03, 2028                
Long-term Debt   $ 50,000                
Cargill Loan [Member] | Line of Credit [Member] | Cargill Financial [Member]                    
Short-term Debt [Line Items]                    
Interest rate   10.50%                
Debt Instrument, Payment Terms   accrued interest on the agreement paid quarterly in arrears                
Debt Instrument, Frequency of Periodic Payment   quarterly                
Maximum [Member] | Promissory notes [Member]                    
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount                   $ 2,175
Interest rate                 4.28%  
Debt Instrument, Maturity Date               Jul. 22, 2029    
Minimum [Member] | Promissory notes [Member]                    
Short-term Debt [Line Items]                    
Debt Instrument, Face Amount                   $ 322
Interest rate                   2.05%
Debt Instrument, Maturity Date               Jan. 22, 2027