Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies. (Details)

v3.21.2
Commitments and Contingencies. (Details)
6 Months Ended
Jun. 30, 2021
USD ($)
Commitments and Contingencies. (Details) [Line Items]  
Indexed price purchase contracts gallons 96,399,000
Open fixed-price sales contracts valued $ 11,061,000
Ethanol Sales Contracts [Member]  
Commitments and Contingencies. (Details) [Line Items]  
Open fixed-price sales contracts valued 223,575,000
Co-products Sales Contracts [Member]  
Commitments and Contingencies. (Details) [Line Items]  
open indexed-price sales contracts tons $ 117,000
Ethanol Purchase Contracts [Member] | Suppliers [Member]  
Commitments and Contingencies. (Details) [Line Items]  
Indexed price purchase contracts gallons 17,706,000
Ethanol Purchase Contracts [Member] | Fuel-grade from suppliers [Member]  
Commitments and Contingencies. (Details) [Line Items]  
Fixed-price purchase contracts value $ 39,086,000
Ethanol Purchase Contracts [Member] | Corn from suppliers [Member]  
Commitments and Contingencies. (Details) [Line Items]  
Fixed-price purchase contracts value $ 77,375,000