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Note 8 - Income Taxes (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2016
Sep. 30, 2015
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount   $ (8,339,000)      
Deferred Tax Assets, Valuation Allowance $ 12,175,000     $ 12,175,000  
Income Tax Expense (Benefit) $ (546,511)   $ 1,600 $ (856,106) $ 1,600
Effective Income Tax Rate Reconciliation, Percent       45.00% 0.20%