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Stockholders' Equity RS Rollforward (Details)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Sep. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Unvested at beginning of year 257,826 376,200 352,086
Shares Granted 12,500 107,500 320,000
Vested (101,840) (192,973) (165,628)
Unvested shares forfeited 0 (32,901) (130,258)
Unvested at end of year 168,486 257,826 376,200