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Note 9 - Prepaid Expenses and Other (Tables)
12 Months Ended
Sep. 30, 2019
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   
September 30,
 
   
2019
   
2018
 
Deposits for inventory
  $
1,064,640
    $
1,366,069
 
Leashold improvement receivable
   
-
     
1,132,017
 
Prepaid insurance
   
194,285
     
162,822
 
Prepaid rent
   
87,782
     
-
 
Prepaid maintenance agreement
   
-
     
93,750
 
Dues and subscriptions
   
88,031
     
92,097
 
Other
   
347,099
     
244,646
 
    $
1,781,837
    $
3,091,401