Annual report pursuant to section 13 and 15(d)

Long-Term Debt (Schedule of Interest Costs) (Details)

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Long-Term Debt (Schedule of Interest Costs) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Long-Term Debt [Abstract]      
Interest expense $ 1,616 [1] $ 2,020 [1] $ 6,879 [1]
Interest capitalized 100 127 98
Total interest cost 1,716 2,147 6,977
Prepayment penalty     3,094
Recognition of unamortized loan origination fees     $ 305
[1] Interest expense for the year ended September 30, 2010 includes a prepayment penalty of $3,094,000 and $305,000 of loan fees.