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Note 1 - Nature of Business and Basis of Presentation (Tables)
6 Months Ended
Mar. 31, 2019
Notes Tables  
Cash, Cash Equivalents, and Restricted Cash [Table Text Block]
   
March 30,
2019
   
September 30,
2018
 
                 
Cash and cash equivalents
  $
7,217
    $
198,144
 
Restricted cash
   
1,763,964
     
3,818,805
 
Total cash, cash equivalents, and restricted cash shown in the cash flow statement
  $
1,771,181
    $
4,016,949