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Income Taxes (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Sep. 30, 2012
Income Tax Disclosure [Abstract]              
Provision for income taxes $ (1)     $ 9 $ 2 $ 75  
Potential cash payments related to cash exposures             200
Tax liability for uncertain tax postions (1) 6 6 6   19  
Benefit for uncertain tax position         $ 4