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Note 4 - Property and Equipment, Net (Tables)
6 Months Ended
Feb. 29, 2020
Notes Tables  
Property, Plant and Equipment [Table Text Block]
    February 29, 2020   August 31, 2019
Land   $
310,365
    $
310,365
 
Buildings and improvements    
7,942,162
     
7,749,980
 
Machinery and equipment    
4,991,681
     
4,903,664
 
     
13,244,208
     
12,964,009
 
Less accumulated depreciation    
(6,016,684
)    
(5,605,850
)
    $
7,227,524
    $
7,358,159