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4. Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt
Third Eye Capital term notes	$ 7,022	$ 6,931
Third Eye Capital revolving credit facility	43,807	35,371
Third Eye Capital revenue participation term notes	11,792	11,636
Third Eye Capital acquisition term notes	23,661	20,048
Third Eye Capital promissory note	2,080	0
Cilion shareholder Seller note payable	5,936	5,824
Subordinated notes	9,640	8,725
EB-5 long term promissory notes	36,847	36,039
Unsecured working capital loans	5,835	4,861
GAFI Term and Revolving loans	25,018	24,351
Total debt	171,638	153,786
Less current portion of debt	19,402	15,625
Total long term debt	$ 152,236	$ 138,161

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Total debt

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