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Property and Equipment (Tables)
3 Months Ended
Mar. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]

Property and equipment are comprised of the following:

 

    March 31,     December 31,  
    2013     2012  
Computer hardware and purchased software   $ 283,954     $ 281,846  
Leasehold improvements     221,666       220,166  
Furniture and fixtures     88,322       88,322  
      593,942       590,334  
Less: accumulated depreciation and amortization     (537,549 )     (532,205 )
Property and equipment, net   $ 56,393     $ 58,129