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Commitments And Contingencies (Narrative) (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Rent expense | $ 443,000 | $ 421,000 | $ 402,000 |
| Sublease income | 0 | 0 | 8,000 |
| Interest rate | 6.83% | ||
| Outstanding balance on the mortgage | 1,575,000 | ||
| Line of credit | 10,000,000 | ||
| Line of credit, basis spread on variable rate | 1.10% | ||
| Line of credit facility, interest rate at period end | 1.40% | ||
| Accrued (income)/expense for long-term compensation plans | (16,000) | 286,000 | 926,000 |
| Accrual for long-term compensation plans | 350,000 | 2,024,000 | |
| Long-term compensation plan, payments for awards | $ 1,657,000 | $ 0 | $ 1,332,000 |
| Long-term compensation plan, percentage paid out in cash, cycle 1 | 50.00% | ||
| Long-term compensation plan, percentage paid out in stock, cycle 1 | 50.00% | ||
| Long-term compensation plan, percentage paid out in cash, cycle 2 | 25.00% | ||
| Long-term compensation plan, percentage paid out in stock, cycle 2 | 75.00% | ||
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Maximum [Member]
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| Operating lease terms | 5 years | ||
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Minimum [Member]
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| Operating lease terms | 1 year | ||
| X | ||||||||||
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- Definition
Long-term compensation plan, payments for awards No definition available.
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| X | ||||||||||
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- Definition
Long-term compensation plan, percentage paid out in cash, cycle 1 No definition available.
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| X | ||||||||||
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- Definition
Long-term compensation plan, percentage paid out in cash, cycle 2 No definition available.
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| X | ||||||||||
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- Definition
Long-term compensation plan, percentage paid out in stock, cycle 1 No definition available.
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| X | ||||||||||
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- Definition
Long-term compensation plan, percentage paid out in stock, cycle 2 No definition available.
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| X | ||||||||||
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- Definition
Operating lease terms No definition available.
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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| X | ||||||||||
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- Definition
Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The effective interest rate at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of payroll tax expense, compensation, postemployment and benefit-related expenses not elsewhere specified in the taxonomy (such as health plan, profit sharing, incentives, tuition reimbursement, other fringe benefits and perquisites) incurred in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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