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DEBT FACILITIES - Heron Lake BioEnergy (Details)
1 Months Ended 3 Months Ended 9 Months Ended 11 Months Ended
Jan. 01, 2021
USD ($)
Apr. 18, 2020
USD ($)
Jun. 30, 2020
USD ($)
installment
Jan. 31, 2020
USD ($)
Jul. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
May 31, 2020
USD ($)
Line of Credit Facility              
Loan received         $ 1,299,593    
Heron Lake BioEnergy, LLC | Amended revolving term note payable to lending institution              
Line of Credit Facility              
Working capital covenants $ 10,000,000     $ 10,000,000   $ 8,000,000  
Heron Lake BioEnergy, LLC | Amended revolving term note payable to lending institution | 2020 Credit Facility              
Line of Credit Facility              
Credit facility maximum     $ 13,000,000       $ 8,000,000
Interest rate (as a percent)         3.50%    
Line of credit unused commitment fee (as a percent)         0.50%    
Heron Lake BioEnergy, LLC | Amended revolving term note payable to lending institution | 2020 Credit Facility | One Month LIBOR              
Line of Credit Facility              
Spread above variable interest rate         3.35%    
Heron Lake BioEnergy, LLC | CoBank | 2020 Credit Facility              
Line of Credit Facility              
Annual fee         $ 2,500    
Heron Lake BioEnergy, LLC | Single advance term note payable to lending institution              
Line of Credit Facility              
Credit facility maximum     $ 3,000,000        
Interest rate, stated percentage     3.80%        
Number of semi-annual installments | installment     10        
Heron Lake BioEnergy, LLC | SBA Paycheck Protection Loan              
Line of Credit Facility              
Loan received   $ 595,693          
Interest rate, stated percentage   1.00%          
Repayment term   2 years