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4. Debt (Details Narrative) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Cilion shareholder Seller note payable |  |
Principal and interest outstanding | $ 6,100 | $ 6,000
Third Eye Capital Term Notes |  |
Principal and interest outstanding | 7,000 | 7,000
Third Eye Capital Revolving Credit Facility |  |
Principal and interest outstanding | 62,900 | 47,200
Third Eye Capital Revenue Participation Term Notes |  |
Principal and interest outstanding | 11,800 | 11,800
Third Eye Capital Acquisition Term Notes |  |
Principal and interest outstanding | 25,500 | 23,800
Subordinated Notes |  |
Principal and interest outstanding | 11,500 | 10,100
EB-5 promissory notes |  |
Principal outstanding | 35,000 | 35,000
Interest outstanding | 2,900 | 2,000
Secunderabad Oils |  |
Principal and interest outstanding | 600 | 300
EB-5 promissory notes phase 2 |  |
Principal and interest outstanding | 4,100 |
EB-5 promissory notes phase 2 |  |
Principal and interest outstanding |  | 0
Unsecured working capital loans |  |
Principal and interest outstanding | $ 2,000 | $ 4,600

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