Annual report pursuant to Section 13 and 15(d)

Property and Equipment (Narrative) (Details)

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Property and Equipment (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Property, Plant and Equipment [Line Items]      
Property and equipment $ 2,026,895 $ 1,441,229  
Accumulated amortization 1,092,317 977,960  
Depreciation and amortization 199,000 117,000 102,000
Assets Held under Capital Leases [Member]
     
Property, Plant and Equipment [Line Items]      
Property and equipment 30,000 20,000  
Accumulated amortization $ 16,000 $ 11,000