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Note 9 - Prepaid Expenses and Other (Tables)
3 Months Ended
Dec. 31, 2018
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   
December 31,
   
September 30,
 
   
2018
   
2018
 
Deposits for inventory
  $
330,690
    $
1,366,069
 
Leashold improvement receivable
   
180,103
     
1,132,017
 
Prepaid insurance
   
114,346
     
162,822
 
Prepaid maintenance agreement
   
46,875
     
93,750
 
Dues and subscriptions
   
51,619
     
92,097
 
Other
   
230,258
     
244,646
 
    $
953,891
    $
3,091,401