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Pension and Employee Benefit Plans (Details Textual) (USD $) | 12 Months Ended
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Dec. 31, 2012 Age | Dec. 31, 2011 | Dec. 31, 2008
Pension and Employee Benefit Plans (Textual) [Abstract] |  |  |
Effective date of retirement for availing post retirement health care plan | Jan. 01, 1990 |  |
Minimum age for the retirees to elect desired health care plan | 65 |  |
Increase Decrease In Minimum Liability After Tax of defined benefit plans | $ 21,000 | $ 601,000 |
Current Assets Mix percentage | 100.00% |  |
Assumed average annual returns | 7.50% | 7.50% |
Net periodic benefit (benefit) cost representing interest cost and Amortization of net actuarial loss | (3,000) | (3,000) |
Weighted average discount rate to determine the net periodic benefit cost | 4.25% | 5.25% |
Plans Funded Status Description | Between 65 and less than 80 percent |  |
Minimum Contribution of Employer under plans Forms 5500 | 5.00% |  |
Liability has been provided in the accompanying consolidated financial statements | 0 |  |
Profit sharing and 401(k) savings retirement plan for non-union employees Description | The plan covers substantially all employees who have 6 months of service, completed 1,000 hours of service and who have attained 18 years of age |  |
Maximum discretionary contributions and provides for employee salary deferrals | 100.00% |  | 1.00%
Aggregate matching contributions and discretionary contributions Amount | 402,000 | 381,000 |
Amounts charged to pension expense | 1,800,000 | 1,300,000 |
Description Increase in matching contributions | We increased, effective January 1, 2008, the matching contributions to 100% of the first 1% and 50% of the next 5% of the employee deferral for a maximum match of 3.5% |  |
Employer Matching Contribution on First one percent |  |  | 100.00%
Employer Matching Contribution on Next Five percent |  |  | 50.00%
Employer Matching Contribution per employee on Next percentage |  |  | 5.00%
Employer Maximum Matching Contribution Percent Of Employee Salary Deferral |  |  | 3.50%
Percentage of Employee salary deferral provision | 100.00% |  |
Pension plan [Member] |  |  |
Pension and Employee Benefit Plans (Textual) [Abstract] |  |  |
Net loss for the defined benefit pension plan to be amortized in next year | 370,000 |  |
Prior service cost for the defined benefit pension plan to be amortized in next year | 1,000 |  |
Estimated pension plan cash obligations payable in 2013 | 388,000 |  |
Estimated pension plan cash obligations payable in 2014 | 409,000 |  |
Estimated pension plan cash obligations payable in 2015 | 413,000 |  |
Estimated pension plan cash obligations payable in 2016 | 425,000 |  |
Estimated pension plan cash obligations payable in 2017 | 440,000 |  |
Estimated pension plan cash obligations payable in 2018 through 2022 | 2,521,000 |  |
Other Benefits [Member] |  |  |
Pension and Employee Benefit Plans (Textual) [Abstract] |  |  |
Net loss for the defined benefit pension plan to be amortized in next year | (14,000) |  |
Estimated pension plan cash obligations payable in 2013 | 15,000 |  |
Estimated pension plan cash obligations payable in 2014 | 14,000 |  |
Estimated pension plan cash obligations payable in 2015 | 12,000 |  |
Estimated pension plan cash obligations payable in 2016 | 11,000 |  |
Estimated pension plan cash obligations payable in 2017 | 10,000 |  |
Estimated pension plan cash obligations payable in 2018 through 2022 | $ 30,000 |  |
Equity Securities [Member] |  |  |
Pension and Employee Benefit Plans (Textual) [Abstract] |  |  |
Current Assets Mix percentage | 70.00% |  |
Assumed average annual returns | 8.00% |  |
Debt Securities [Member] |  |  |
Pension and Employee Benefit Plans (Textual) [Abstract] |  |  |
Current Assets Mix percentage | 30.00% |  |
Maximum [Member] | Debt Securities [Member] |  |  |
Pension and Employee Benefit Plans (Textual) [Abstract] |  |  |
Assumed average annual returns | 6.00% |  |
Minimum [Member] | Debt Securities [Member] |  |  |
Pension and Employee Benefit Plans (Textual) [Abstract] |  |  |
Assumed average annual returns | 4.00% |  |

X
- Definition Defined benefit plan accumulated other comprehensive income increase decrease in minimum pension liability after tax. + References No definition available. + Details
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- Definition Defined benefit plan interest cost and amortization of net actuarial loss. + References No definition available. + Details
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- Definition Defined contribution plan employer matching contribution percent one. + References No definition available. + Details
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- Definition Defined contribution plan employer maximum matching contribution percent. + References No definition available. + Details
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- Definition Defined contribution plan maximum annual contribution per employee percent one. + References No definition available. + Details
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- Definition The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (s) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 158 -Paragraph 7 -Subparagraph d -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph s -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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- Definition The amounts in accumulated other comprehensive income related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (s) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 158 -Paragraph 7 -Subparagraph d -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph s -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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- Definition The interest rate used to adjust for the time value of money. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph j -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 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph j -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 715 -SubTopic 30 -Glossary Expected Long-Term Rate of Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512013 + Details
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- Definition Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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- Definition Description of the terms and benefits provided by the employer's defined contribution plans. A defined contribution plan provides benefits in return for services rendered, provides an individual account for each participant, and has terms that specify how contributions to the individual's account are to be determined rather than the amount of benefits the individual is to receive. Under a defined contribution pension plan, the benefits a participant will receive depend solely on the amount contributed to the participant's account, the returns earned on investments of those contributions, and forfeitures of other participants' benefits that may be allocated to such participant's account. A description of the plan(s) including employee groups covered, the basis for determining contributions, and the nature and effects of significant matters affecting comparability of information for all periods presented. + References Reference 1: 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. Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 -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 -Glossary Defined Contribution Postretirement Plan -URI http://asc.fasb.org/extlink&oid=6510416 + Details
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- Definition Amount of accumulated benefit obligation attributable to the pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 7 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450678-114947 + Details
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- Definition Indicate whether the multiemployer plan is less than 65 percent funded, between 65 and less than 80 percent funded, or at least 80 percent funded. The acceptable values are: (1) "less than 65 percent", (2) "between 65 and less than 80 percent", (3) "at least 80 percent", and (4) "NA". A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450657-114947 + Details
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