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Inventory
6 Months Ended
Jun. 30, 2011
Inventory [Abstract]  
Inventory
3. Inventory
     Inventory, consisting of materials, labor and manufacturing overhead, is stated at the lower of cost (first-in, first-out) or market and consisted of the following at:
                 
    June 30,     December 31,  
    2011     2010  
Raw Materials
  $ 4,675,000     $ 3,898,000  
Work In Progress
    187,000       872,000  
Finished Goods
    297,000       314,000  
Reserve for Obsolescence
    (654,000 )     (629,000 )
 
           
Total
  $ 4,505,000     $ 4,455,000  
 
           
Inventory write-offs were $179,000 and $0 for the six months ended June 30, 2011 and 2010, respectively.