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Note 4 - Property and Equipment, Net (Tables)
9 Months Ended
May 31, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
    May 31, 2017   August 31, 2016
Land   $
310,365
    $
310,365
 
Buildings and improvements    
6,623,104
     
6,528,252
 
Machinery and equipment    
4,170,638
     
3,590,063
 
     
11,104,107
     
10,428,680
 
Less accumulated depreciation    
(3,652,208
)    
(3,152,808
)
    $
7,451,899
    $
7,275,872