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Note 15 - Accrued Liabilities (Details) - Table of Accrued Liabilities (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Note 15 - Accrued Liabilities (Details) - Table of Accrued Liabilities [Line Items] | ||
| Insurance | $ 7,222 | $ 12,307 |
| Reserve for plant closure costs | 595 | |
| Reserve for U.S. Attorney investigation | 7,655 | |
| Salary and benefits | 9,423 | 4,989 |
| Total accrued liabilities | 29,145 | 31,741 |
| Taxes, other than income tax | 64 | 42 |
| Income tax | 4,132 | |
| Deferred revenue | 2,362 | 2,060 |
| Contractual obligations | 470 | |
| Accrued interest | 200 | 225 |
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Trade Creditors [Member]
|
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| Note 15 - Accrued Liabilities (Details) - Table of Accrued Liabilities [Line Items] | ||
| Other Accrued liabilities | 5,100 | 3,914 |
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Other Liabilities [Member]
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| Note 15 - Accrued Liabilities (Details) - Table of Accrued Liabilities [Line Items] | ||
| Other Accrued liabilities | $ 47 | $ 79 |