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Note J - Economic Dependency (Tables)
 12 Months Ended
Jun. 30, 2017
Supplier Concentration Risk [Member]  
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
   
Year ended June 30
,
  
   
201
7
    
201
6
  
   
Raw
Material
Purchases by
Supplier
    
%
of Total
Raw
Material
Purchases
    
Raw
Material
Purchases by
Supplier
    
%
of Total
Raw
Material
Purchases
  
Supplier
1
   $
6,694
      
12
 %  
(a)
    
(a)
  
    $
6,694
      
12
 %  
(a)
    
(a)
  
Customer Concentration Risk [Member]  
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
   
Fiscal 2017
    
Fiscal 2016
  
Customer 1
   $
60,532
     $
49,442
  
Customer 2
  
(a)
      
13,952
  
    $
60,532
     $
63,394