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4. Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt
Third Eye Capital term notes	$ 7,022	$ 6,931
Third Eye Capital revolving credit facility	41,117	35,371
Third Eye Capital revenue participation term notes	11,792	11,636
Third Eye Capital acquisition term notes	23,500	20,048
Third Eye Capital promissory note	2,082	0
Cilion shareholder Seller note payable	5,898	5,824
Subordinated notes	9,391	8,725
EB-5 long term promissory notes	36,658	36,039
Unsecured working capital loans	4,711	4,861
GAFI Term and Revolving loans	26,180	24,351
Total debt	168,351	153,786
Less current portion of debt	19,418	15,625
Total long term debt	$ 148,933	$ 138,161

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Total debt

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