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Property and Equipment
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property and Equipment
4. Property and Equipment

Property and equipment consist of the following:

   
December 31,
  Estimated
   
2012
   
2011
 
 Useful Life
                   
Computer software
  $ 230,299     $ 230,299  
5  years
Equipment
    544,108       573,134  
15  years
Office furniture and equipment
    95,754       95,754  
7 years
Computer hardware
    27,746       27,746  
5 years
Leasehold improvements
    303,318       303,318  
(a)
Total
    1,201,225       1,230,251    
Less: accumulated depreciation and amortization
    (433,204 )     (286,402 )  
Property and equipment, net
  $ 768,021     $ 943,849    
                   
(a)  
Lesser of useful life or initial term of lease 

The cost basis of the equipment was adjusted during 2012 due to the restructuring of an equipment lease payable (see Note 9). Depreciation and amortization expense for the above assets for the years ended December 31, 2012 and 2011 was $146,802 and $96,683, respectively.