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1. Nature of Activities and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
North America
Sales	$ 37,176	$ 29,953
North America | Ethanol sales
Sales	28,212	23,545
North America | Wet distiller's grains sales
Sales	7,828	5,581
North America | Other sales
Sales	1,136	827
India
Sales	5,842	1,621
India | Biodiesel sales
Sales	4,501	833
India | Refined Glycerin sales
Sales	$ 1,341	$ 788

X

- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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