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3. Inventories
6 Months Ended
Jun. 30, 2012
Notes to Financial Statements  
Inventories

 

Inventories consist of :  

June 30,

2012

   

December 31,

2011

 
Raw materials   $ 1,094,730     $ 815,357  
Work in process     97,289       25,641  
Finished goods (including $649,000 and $822,000 held by customers at June 30, 2012 and December 31, 2011, respectively)     1,628,497       1,881,785  
Total inventories   $ 2,820,516     $ 2,722,783