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5. Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property and equipment
    2012     2011  
Furniture and fixtures   $ 175,856     $ 175,856  
Equipment     594,391       506,457  
Software     332,337       326,315  
Leasehold improvements     15,992       15,992  
Total property and equipment     1,118,576       1,024,620  
Less: accumulated depreciation     (1,027,246 )     (1,020,386 )
                 
Net property and equipment   $ 91,330     $ 4,234