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Note 8 - Prepaid Expenses and Other Current Assets (Details) - Prepaid Expenses and Other Current Assets (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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Dec. 31, 2012
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| Note 8 - Prepaid Expenses and Other Current Assets (Details) - Prepaid Expenses and Other Current Assets [Line Items] | ||
| Prepaid insurance | $ 2,422 | $ 2,554 |
| Selling expenses | 869 | 436 |
| Fair market value of energy swaps, current portion | 275 | 134 |
| Total prepaid expenses and other current assets | 3,915 | 3,430 |
| Leases | 53 | 118 |
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Whey Process Filters [Member]
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| Note 8 - Prepaid Expenses and Other Current Assets (Details) - Prepaid Expenses and Other Current Assets [Line Items] | ||
| Other prepaids and expenses | 38 | |
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Other Prepaids And Expenses [Member]
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| Note 8 - Prepaid Expenses and Other Current Assets (Details) - Prepaid Expenses and Other Current Assets [Line Items] | ||
| Other prepaids and expenses | $ 258 | $ 188 |