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Property and Equipment
9 Months Ended
Sep. 30, 2013
Property and Equipment [Abstract]  
Property and Equipment
3.  Property and Equipment

Property and equipment was:

 
 
September 30, 2013
  
December 31, 2012
 
Equipment
 
$
1,238,800
  
$
1,171,900
 
Furniture
  
392,800
   
380,200
 
Leasehold improvements
  
147,500
   
147,500
 
 
  
1,779,100
   
1,699,600
 
Less: accumulated depreciation and amortization
  
1,421,300
   
1,340,700
 
 
 
$
357,800
  
$
358,900
 
 
Aggregate property and equipment depreciation and amortization expense was $28,200 during the three-month period ended September 30, 2013 and $80,600 during the nine-month period ended September 30, 2013. During the nine-month period ended September 30, 2013, we capitalized the following costs: equipment; $64,900, furniture; $14,600.