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Equity Securities And Stock-Based Compensation (Details 5) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Equity Securities and Stock-based Compensation      
Compensation expense related to restricted stock, restricted stock units and the ESPP $ 0.7 $ 1.9 $ 2.3
Total compensation cost related to unvested awards not yet recognized $ 0.8    
Weighted-average period for recognition of compensation cost 1 year 7 months 6 days    
Restricted Stock
     
Equity Securities and Stock-based Compensation      
Awards granted vesting period 3 years    
Shares Outstanding, Beginning Balance 195    
Shares, Granted 0    
Shares, Vested (133)    
Shares, Forfeited (5)    
Shares Outstanding, Ending Balance 57    
Weighted-average exercise price, Beginning Balance $ 4.28    
Weighted-average exercise price, Granted $ 0.00    
Weighted-average exercise price, Vested $ 4.44    
Weighted-average exercise price, Forfeited $ 4.60    
Weighted-average exercise price, Ending Balance $ 3.89    
Restricted Stock Units (RSUs)
     
Equity Securities and Stock-based Compensation      
Awards granted vesting period 1 year    
Officers and employees | Restricted Stock
     
Equity Securities and Stock-based Compensation      
Shares, Granted 400    
Non-Affiliated Directors | Restricted Stock Units (RSUs)
     
Equity Securities and Stock-based Compensation      
Shares, Granted 200