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Note 3 - Inventories (Tables) | 3 Months Ended
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Mar. 31, 2013
Schedule of Inventory, Current [Table Text Block] |
|  | Inventory as of |
(in thousands) |  | March 31, 2013 |  |  | December 31, 2012 |
Unprocessed |  | $ | 201,685 |  |  | $ | 215,526 |
Processed and finished |  |  | 73,500 |  |  |  | 74,497 |
Totals |  | $ | 275,185 |  |  | $ | 290,023 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration