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Note 6 - Inventories
9 Months Ended
Sep. 30, 2013
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

6.             Inventories


As of September 30, 2013 and December 31, 2012, inventories consisted of the following:


   

September 30,

2013

   

December 31,

2012

 
                 

Raw materials

  $ 5,590,000     $ 8,212,000  

Work in process

    2,628,000       3,056,000  

Finished goods

    5,423,000       5,896,000  
    $ 13,641,000     $ 17,164,000