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Inventories
6 Months Ended
Jun. 30, 2011
Inventories [Abstract]  
Inventories
NOTE 2 — Inventories
Inventories consist of the following:
                 
    June 30,     December 31,  
    2011     2010  
Finished goods
  $ 828,002     $ 613,009  
Raw materials and sub-assemblies
    233,057       285,409  
 
           
 
  $ 1,061,059     $ 898,418  
 
           
Purchases of finished assemblies and components from three major vendors represented 40%, 26% and 24% of the total inventory purchased in the six months ended June 30, 2011, and two vendors accounted for 37% and 33% for the six months ended June 30, 2010. The Company has arrangements with these vendors to purchase product based on purchase orders periodically issued by the Company.