XML 30 R17.htm IDEA: XBRL DOCUMENT v2.4.0.6
Other long-term assets (Tables)
 3 Months Ended
Mar. 31, 2013
Other long-term assets [Abstract]  
Schedule of Other Long-Term Assets
   
March 31,
2013
(Unaudited)
    
December 31,
2012
  
         
Patents, trademarks and applications, net of accumulated
amortization of $364,479 and $345,692
  
$
1,221,195
    
$
1,210,698
  
Goodwill
    
387,239
      
387,239
  
Other
    
2,530
      
3,957
  
                 
   
$
1,610,964
    
$
1,601,894