XML 42 R16.htm IDEA: XBRL DOCUMENT v2.4.0.6
Property and equipment (Tables)
 3 Months Ended
Mar. 31, 2013
Property and equipment Abstract]  
Schedule of Property and Equipment
   
March 31,
2013
(Unaudited)
    
December 31,
2012
  
         
Land and improvements
  
$
1,107,508
    
$
1,107,508
  
Building
    
2,589,231
      
2,589,231
  
Building improvements
    
252,197
      
251,049
  
Laboratory equipment
    
1,212,668
      
1,211,418
  
Office and computer equipment
    
412,138
      
403,692
  
                 
     
5,573,742
      
5,562,898
  
Less accumulated depreciation
    
3,144,953
      
3,078,359
  
                 
   
$
2,428,789
    
$
2,484,539