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Note 4 - Property and Equipment, Net (Tables)
12 Months Ended
Aug. 31, 2018
Notes Tables  
Property, Plant and Equipment [Table Text Block]
    August 31, 2018   August 31, 2017
Land   $
310,365
    $
310,365
 
Buildings and improvements    
6,927,484
     
6,847,177
 
Machinery and equipment    
4,680,072
     
4,171,387
 
     
11,917,921
     
11,328,929
 
Less accumulated depreciation    
(4,749,095
)    
(3,969,267
)
    $
7,168,826
    $
7,359,662