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Inventory (Tables)
3 Months Ended
Mar. 31, 2013
Inventory Tables  
Inventory (Tables)

Inventory consists of the following:

          March 31,         December 31,
      2013     2012
Raw materials   $ 149,000    $ 361,000 
Finished goods     68,000      136,000 
    $ 217,000    $ 497,000