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Inventory
3 Months Ended
Mar. 31, 2012
Inventory  
Inventory Disclosure [Text Block]

5.  Inventories are stated at the lower of cost or net realizable value, cost being determined by the first-in, first-out method.  A summary of inventories is as follows: 

 

 

March 31, 2012

 

December 31, 2011

Raw material

$              1,796,802

 

$                2,016,032

Work-In-Process

                2,106,113

 

                  1,984,368

Finished Goods

                1,723,031

 

                  1,760,640

 

                5,625,946

 

                  5,761,040

Valuation reserves

                 (560,500)

 

                   (549,000)

 

$              5,065,446

 

 $               5,212,040