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Inventories
6 Months Ended
Jun. 30, 2012
Inventories [Abstract]  
Inventories
(4)           Inventories

Inventories are stated at the lower of cost (first-in, first-out method) or market.  Appropriate consideration is given to deterioration, obsolescence and other factors in evaluating net realizable value.  Inventories are comprised of the following:

 
 
June 30,
2012
  
December 31, 2011
 
   
(unaudited)
    
        
     Raw materials
 $6,862,000  $7,107,000 
     Work-in process
  1,072,000   1,369,000 
     Finished goods
  6,606,000   6,312,000 
   $14,540,000  $14,788,000