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Note 5 - Inventories
6 Months Ended
Sep. 30, 2014
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

5.

Inventories


Inventories consisted of the following:


     

September 30, 2014

   

March 31, 2014

 

Aircraft parts and supplies

  $ -     $ 119,638  

Ground support service parts

    702,581       608,674  

Ground equipment manufacturing:

               
 

Raw materials

    5,951,918       6,965,659  
 

Work in process

    2,072,999       1,814,791  
 

Finished goods

    629,003       3,486,269  

Total inventories

    9,356,501       12,995,031  

Reserves

    (438,380 )     (755,562 )
 

Total, net of reserves

  $ 8,918,121     $ 12,239,469