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Prepaid Expenses and Other Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Sep. 30, 2015
--- | --- | ---
Cash and Cash Equivalents [Line Items] |  |
Current | $ 2,261 | $ 1,791
Non-Current | 1,692 | 3,002
Investments in agricultural cooperatives |  |
Cash and Cash Equivalents [Line Items] |  |
Current | 0 | 0
Non-Current | 146 | 846
Cash surrender value |  |
Cash and Cash Equivalents [Line Items] |  |
Current | 0 | 0
Non-Current | 445 | 722
Equity investment in affiliate |  |
Cash and Cash Equivalents [Line Items] |  |
Current | 0 | 0
Non-Current | 543 | 817
Escrow deposit for capital expenditures |  |
Cash and Cash Equivalents [Line Items] |  |
Current | 0 | 0
Non-Current | 164 | 166
Guaranteed payments on sugarcane sale |  |
Cash and Cash Equivalents [Line Items] |  |
Current | 1,236 | 843
Non-Current | 0 | 0
Prepaid insurance |  |
Cash and Cash Equivalents [Line Items] |  |
Current | 955 | 811
Non-Current | 0 | 0
Other |  |
Cash and Cash Equivalents [Line Items] |  |
Current | 70 | 137
Non-Current | $ 394 | $ 451

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