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

5.

Inventories


Inventories consisted of the following:


   

June 30, 2014

   

March 31, 2014

 

Aircraft parts and supplies

  $ 119,638     $ 119,638  

Ground support service parts

    697,463       608,674  

Ground equipment manufacturing:

               

Raw materials

    7,809,350       6,965,659  

Work in process

    3,547,697       1,814,791  

Finished goods

    3,424,635       3,486,269  

Total inventories

    15,598,783       12,995,031  

Reserves

    (563,543 )     (755,562 )
                 

Total, net of reserves

  $ 15,035,240     $ 12,239,469