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Note 4 - Forgivable Loans Receivable (Tables)
 9 Months Ended 12 Months Ended
Jun. 30, 2016
Sep. 30, 2015
Notes Tables    
Investments in and Advances to Affiliates [Table Text Block]
Balance, October 1, 2015
 
$
1,368,000
 
Additions
 
 
933,000
 
Amortization
 
 
(493,000
)
Balance, June 30, 2016
 
$
1,808,000
 
Balance, September 30, 2013
   $ 436,000  
Advances
     469,000  
Amortization
     (243,000
)
Balance, September 30, 2014
     662,000  
Advances
     1,257,000  
Amortization
     (538,000
)
Write-off
     (13,000
)
Balance, September 30, 2015
   $ 1,368,000