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Stock Compensation (Details Textual) (USD $)
6 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Stock Compensation (Textual) [Abstract]    
Stock option exercises, issuance of shares 195,898  
Proceeds from exercise of stock options $ 634,000 $ 205,000
Chief Executive Officer [Member]
   
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]    
Accelerated vesting of restricted stock   7,300,000
Income tax benefit   $ 2,500,000