| 
           Long-Term Debt (Schedule of Interest Costs) (Details) (USD $) 
        In Thousands, unless otherwise specified  | 
        3 Months Ended | |
|---|---|---|
| 
           Dec. 31, 2014 
         | 
        
           Dec. 31, 2013 
         | 
      |
| Long-Term Debt [Abstract] | ||
| Interest expense | $ 860us-gaap_InterestExpense | $ 269us-gaap_InterestExpense | 
| Interest capitalized | 53us-gaap_InterestCostsCapitalized | 29us-gaap_InterestCostsCapitalized | 
| Total interest cost | $ 913us-gaap_InterestCostsIncurred | $ 298us-gaap_InterestCostsIncurred | 
| X | ||||||||||
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- Definition 
          Amount of interest capitalized during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition 
          Total interest costs incurred during the period and either capitalized or charged against earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
| 
             
- Definition 
          Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Details 
          
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