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Note 5 - Property and Equipment (Tables)
12 Months Ended
Mar. 31, 2015
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
March 31,
 
   
2015
   
2014
 
Furniture, fixtures and improvements
  $ 4,931,748     $ 6,265,083  
Flight equipment and rotables
    -       3,203,765  
Equipment leased to customers
    1,672,402       2,831,015  
      6,604,150       12,299,863  
Less accumulated depreciation
    (4,032,650 )     (8,313,689 )
                 
Property and equipment, net
  $ 2,571,499     $ 3,986,174