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ORGANIZATION AND BASIS OF PRESENTATION. (Details Narrative) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) Number | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) Number | Sep. 30, 2018 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Ethanol production capacity per year |  |  | 605 million gallons per year |  |  |  |
Ethanol market capacity per year |  |  | Markets nearly 1.0 billion gallons of ethanol |  |  |  |
Other products produced per year |  |  | Produces over 3.0 million tons of co-products |  |  |  |
Accounts receivable used as collateral | $ 61,743 |  | $ 61,743 |  | $ 54,820 |  |
Allowance for doubtful accounts | 39 |  | 39 |  | 12 |  |
Bad debt expense | 0 | $ 1 | 27 | $ 44 |  |  |
Bad debt recovery | 0 | 1 |  |  |  |  |
Cash | $ 18,921 | $ 56,093 | $ 18,921 | $ 56,093 | $ 26,627 | [1] | $ 49,489
Number of ethanol plants | Number | 9 |  | 9 |  |  |  |
Ethanol production plant assest |  |  | 355 million gallons |  |  |  |
Kinergy Marketing LLC [Member] |  |  |  |  |  |  |
Cash | $ 18,900 |  | $ 18,900 |  |  |  |
Line of credit | $ 2,200 |  | $ 2,200 |  |  |  |
[1] | Amounts derived from the audited consolidated financial statements for the year ended December 31, 2018.

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