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Property and Equipment (Details) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Computer hardware and purchased software $ 296,900 $ 281,846
Leasehold improvements 221,666 220,166
Furniture and fixtures 88,321 88,322
Property, Plant and Equipment, Gross 606,887 590,334
Less: accumulated depreciation and amortization (544,319) (532,205)
Property and equipment, net $ 62,568 $ 58,129