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4. Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt Details
Third Eye Capital term notes	$ 7,024	$ 6,931
Third Eye Capital revolving credit facility	38,523	35,371
Third Eye Capital revenue participation term notes	11,794	11,636
Third Eye Capital acquisition term notes	23,352	20,048
Third Eye Capital promissory note	2,287	0
Cilion shareholder Seller note payable	5,861	5,824
Subordinated notes	9,016	8,725
EB-5 long term promissory notes	36,247	36,039
Unsecured working capital loans	3,606	4,861
GAFI Term and Revolving loans	24,480	24,351
Total debt	162,190	153,786
Less current portion of debt	35,156	15,625
Total long term debt	$ 127,034	$ 138,161

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