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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)
3 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]    
Statutory rate 35.00% 35.00%
Foreign valuation allowance (11.00%)  
Research and development credit 45.00% 46.00%
State income taxes, net of federal benefit 3.00% 2.00%
Domestic production activities deduction (2.00%) (2.00%)
Effective rate 70.00% 81.00%