XML 30 R11.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Inventories
6 Months Ended
Jun. 30, 2011
Inventories [Abstract]  
Inventories
3. Inventories
Inventories consisted of the following:
                 
    December 31,     June 30,  
    2010     2011  
            (Unaudited)  
 
               
Purchased materials
  $ 1,073,360     $ 1,313,420  
Finished goods
    1,433,645       1,591,265  
Reserve
    (291,756 )     (313,761 )
 
           
 
  $ 2,215,249     $ 2,590,924