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           Income Taxes (Income Tax Expense By Jurisdiction) (Details) (USD $) 
         | 
        12 Months Ended | ||
|---|---|---|---|
| 
           Dec. 31, 2014 
         | 
        
           Dec. 31, 2013 
         | 
        
           Dec. 31, 2012 
         | 
      |
| Income Taxes [Abstract] | |||
| Currently payable income taxes: Federal | $ 328,000us-gaap_CurrentFederalTaxExpenseBenefit | $ 2,114,000us-gaap_CurrentFederalTaxExpenseBenefit | $ 1,669,000us-gaap_CurrentFederalTaxExpenseBenefit | 
| Currently payable income taxes: State | (12,000)us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 297,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 141,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 
| Currently payable income taxes: Foreign | 113,000us-gaap_CurrentForeignTaxExpenseBenefit | (32,000)us-gaap_CurrentForeignTaxExpenseBenefit | (18,000)us-gaap_CurrentForeignTaxExpenseBenefit | 
| Currently payable income taxes | 429,000us-gaap_CurrentIncomeTaxExpenseBenefit | 2,379,000us-gaap_CurrentIncomeTaxExpenseBenefit | 1,792,000us-gaap_CurrentIncomeTaxExpenseBenefit | 
| Deferred income taxes (benefit): Federal | 761,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (303,000)us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (542,000)us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 
| Deferred income taxes (benefit): State | 40,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 18,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | (33,000)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 
| Deferred income taxes (benefit): Foreign | (11,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (33,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (57,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | 
| Deferred income taxes (benefit) | 790,402us-gaap_DeferredIncomeTaxExpenseBenefit | (317,727)us-gaap_DeferredIncomeTaxExpenseBenefit | (631,626)us-gaap_DeferredIncomeTaxExpenseBenefit | 
| Income taxes (benefit) | $ 1,219,355us-gaap_IncomeTaxExpenseBenefit | $ 2,061,013us-gaap_IncomeTaxExpenseBenefit | $ 1,159,566us-gaap_IncomeTaxExpenseBenefit | 
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- Definition 
          Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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- Definition 
          Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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