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Income Taxes (Details 2)
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Income Tax [Line Items]    
Tax due at statutory rate 34.00% 34.00%
State tax provision, net of federal (3.49%) 9.13%
Valuation allowance (78.87%) 93.66%
Valuation allowance release 380.61% 0.00%
Foreign tax credits 29.34% (77.28%)
Foreign rate differential and other (16.54%) (46.39%)
Total 345.05% 13.12%