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Stock Options Nonvested Share Activity (Details) (USD $)
12 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]  
Outstanding, beginning of period1,217,083 
Granted370,650 
Vested(486,094) 
Forfeited(92,781) 
Outstanding, end of period1,008,858 
Outstanding, weighted average grant date fair value, beginning of period$ 3.02$ 2.66
Granted, weighted average grant date fair value$ 3.89 
Vested, weighted average grant date fair value$ 2.86 
Forfeited, weighted average grant date fair value$ 2.66 
Outstanding, weighted average grant date fair value, end of period$ 3.02$ 2.66