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Employees' Benefit Plans (Details Textual) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Eligiblility of Employees | Employees are eligible to participate in the Employees' Savings and Profit Sharing Plan and Trust on the next January 1 or July 1 following the completion of one year of employment, age 18, and completion of 1,000 hours of service. |
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage | 100.00% |
Defined Contribution Plan, Employer Matching Contribution, Percent | 9.00% | 4.00%
Defined Contribution Plan, Cost Recognized | $ 677,000 | $ 283,000
Deferred Compensation Liability, Current and Noncurrent | 141,000 | 127,000
Deferred Compensation Arrangement with Individual, Compensation Expense | 14,000 | 8,000
Deferred Costs | 91,000 | 108,000
Deferred Fee Liability | $ 1,234,000 | $ 1,678,000
Minimum [Member] |  |
Defined Benefit Plan, Employees Pre Tax Contributions | 1.00% |
Maximum [Member] |  |
Defined Benefit Plan, Employees Pre Tax Contributions | 50.00% |

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- Definition Maximum amount, that the employee may contribute to a defined contribution plan befor tax payments. + References No definition available. + Details
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- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 6, 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 + Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 11 -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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