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Goodwill and Other Intangible Assets, Net (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Goodwill and other intangible assets, net |  |  |
Goodwill | $ 43,218,000 | $ 40,628,000 |
Other intangible assets subject to amortization, other than goodwill | 2,843,000 | 2,496,000 |
Other intangibles subject to amortization: |  |  |
Gross carrying amount customer relationships | 9,045,000 | 9,045,000 |
Accumulated amortization customer relationships | (6,798,000) | (6,549,000) |
Gross carrying amount of other intangible assets | 1,441,000 |  |
Accumulated amortization other intangible assets | (845,000) |  |
Other intangible assets subject to amortization, net | 2,843,000 | 2,496,000 |
Other intangibles not subject to amortization: |  |  |
Carrying amount-trade names and registered trademarks | 17,000,000 | 17,000,000 |
Total other intangible assets, net | 19,843,000 | 19,496,000 |
Current amortization expense and future amortization expense |  |  |
Amortization expense of other amortizable intangible assets | 1,095,000 | 250,000 | 930,000
Future amortization expense year one | 810,000 |  |
Future amortization expense year two | 267,000 |  |
Future amortization expense year three | 267,000 |  |
Future amortization expense year four | 252,000 |  |
Future amortization expense year five | 250,000 |  |
Pork Segment [Member] |  |  |
Goodwill and other intangible assets, net |  |  |
Goodwill | 40,628,000 |  |
Commodity Trading and Milling [Member] |  |  |
Goodwill and other intangible assets, net |  |  |
Goodwill | 2,590,000 |  |
Other intangible assets subject to amortization, other than goodwill | 596,000 |  |
Other intangibles subject to amortization: |  |  |
Other intangible assets subject to amortization, net | $ 596,000 |  |

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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit and rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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