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Note 7 - Property and Equipment
 6 Months Ended
Mar. 31, 2020
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]
7
.
PROPERTY AND EQUIPMENT
 
Property and equipment consisted of the following:
 
   
March 31,
    
September 30,
  
   
2020
    
2019
  
Office furniture and equipment
   $
1,554,306
     $
1,498,395
  
Machinery and equipment
    
1,237,617
      
1,223,726
  
Leasehold improvements
    
2,027,335
      
2,019,794
  
Construction in progress
    
7,565
      
7,565
  
Property and equipment, gross
    
4,826,823
      
4,749,480
  
Accumulated depreciation
    
(2,721,190
 )    
(2,479,974
 )
Property and equipment, net
   $
2,105,633
     $
2,269,506
  
 
Depreciation expense was
$132,062
and
$139,737
for the
three
months ended
March 31, 2020
and
2019,
respectively. Depreciation expense was
$266,037
and
$264,197
for the
six
months ended
March 31, 2020
and
2019,
respectively.