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           Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $) 
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           Dec. 31, 2012 
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           Dec. 31, 2011 
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| Income Taxes [Abstract] | ||
| Allowance for doubtful accounts | $ 25,000 | $ 58,000 | 
| Inventory | 3,393,000 | 2,611,000 | 
| Accrued and prepaid expenses | 530,000 | 762,000 | 
| Domestic net operating loss carry-forward | 106,000 | 186,000 | 
| Long-term compensation plans | 330,000 | 298,000 | 
| Nonemployee director stock compensation | 200,000 | 128,000 | 
| Other stock compensation | 176,000 | 122,000 | 
| State income taxes | 69,000 | 63,000 | 
| Foreign net operating loss carry-forwards and credits | 2,092,000 | 2,625,000 | 
| Gross deferred tax assets | 6,921,000 | 6,853,000 | 
| Valuation allowance | (2,091,000) | (2,624,000) | 
| Net deferred tax assets | 4,830,000 | 4,229,000 | 
| Depreciation | (1,439,000) | (1,577,000) | 
| Intangible assets | (759,000) | (674,000) | 
| Gross deferred tax liability | (2,198,000) | (2,251,000) | 
| Total net deferred tax asset | $ 2,632,000 | $ 1,978,000 | 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax liability to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from state taxes. No definition available. 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other compensation and benefits not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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