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Inventories
9 Months Ended
Dec. 31, 2012
Inventories
NOTE 4. Inventories

Inventories are summarized as follows:

 

     December 31,
2012
    March 31,
2012
 

Finished goods

   $ 494      $ 512   

Work in process

     8,618        6,340   

Purchased and manufactured parts

     14,710        10,473   
  

 

 

   

 

 

 
     23,822        17,325   

Reserve for slow moving and obsolescence

     (3,039     (2,694
  

 

 

   

 

 

 

Total

   $ 20,783      $ 14,631   
  

 

 

   

 

 

 

Inventory obsolescence is determined by identifying specific items based on the age of inventory and by establishing a general reserve based on annual purchases. Analyzing inventory by age showed little movement once items have aged five years, and historical trends showed that 1.1% of purchases would have the potential to eventually be scrapped. Accordingly, the Company uses these two factors in determining the amount of the reserve.