Restructuring Activities	12 Months Ended
Dec. 31, 2019
Restructuring Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	16. RESTRUCTURING ACTIVITIES In the second quarter of 2018, the company announced its portfolio optimization program of which one of the five strategic objectives was to reduce controllable expenses. As part of the program, the company implemented a workforce reduction at certain of its facilities, including its corporate location. The associated severance costs were recognized at the time both the employee and employer were irrevocably committed to the terms of the separation. As of December 31, 2018, the company recognized a $4.2 million charge for such workforce reductions it had implemented through that date with $3.8 million classified as selling, general and administrative expense and $0.4 million classified as costs of goods sold. Of the $4.2 million charge, $3.1 million was recorded in the corporate segment, $0.7 million was recorded in the agribusiness and energy services segment, $0.4 million was recorded in the ethanol production segment. Approximately $2.7 million of the total charge was included in accrued liabilities as of December 31, 2018 and paid in full during 2019.

Restructuring Activities

12 Months Ended

Dec. 31, 2019

Restructuring and Related Activities Disclosure [Text Block]

16. RESTRUCTURING ACTIVITIES

In the second quarter of 2018, the company announced its portfolio optimization program of which one of the five strategic objectives was to reduce controllable expenses. As part of the program, the company implemented a workforce reduction at certain of its facilities, including its corporate location. The associated severance costs were recognized at the time both the employee and employer were irrevocably committed to the terms of the separation. As of December 31, 2018, the company recognized a $4.2 million charge for such workforce reductions it had implemented through that date with $3.8 million classified as selling, general and administrative expense and $0.4 million classified as costs of goods sold. Of the $4.2 million charge, $3.1 million was recorded in the corporate segment, $0.7 million was recorded in the agribusiness and energy services segment, $0.4 million was recorded in the ethanol production segment. Approximately $2.7 million of the total charge was included in accrued liabilities as of December 31, 2018 and paid in full during 2019.