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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)
3 Months Ended 6 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Income Tax Disclosure [Abstract]        
Statutory rate     35.00% 35.00%
Foreign valuation allowance     (11.00%) 661.00%
Research and development credit     (24.00%) (327.00%)
State income taxes, net of federal benefit     2.00% 2.00%
Rate differential and other     (9.00%) (3.00%)
Effective tax rate 12.00% 237.00% (7.00%) 368.00%