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1. Nature of Activities and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Disaggregation of revenue

North America (in thousands)

		For the years ended December 31,
		2019				2018
Ethanol sales		$	114,593			$	113,855
Wet distillers' grains sales			34,510				32,362
Other sales			5,045				3,828
		$	154,148			$	150,045

India (in thousands)
		For the years ended December 31,
		2019				2018
Biodiesel sales		$	42,464			$	17,009
Refined Glycerin sales			2,809				4,467
Other sales			2,577				5
		$	47,850			$	21,481

Schedule of dilutive securities

		As of
		December 31, 2019				December 31, 2018
Series B preferred (post split basis)			132				132
Common stock options and warrants			3,840				2,984
Debt with conversion feature at $30 per share of common stock			1,262				1,236
SARs conversion if stock issued at $0.71 per share to cover $2.1 million			-				2,964
Total number of potentially dilutive shares excluded from the diluted net loss per share calculation			5,234				7,316

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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