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(5) Other Long-term Assets and Other Income (In thousands) (Tables)
15 Months Ended
Mar. 31, 2014
Other Long Term Assets And Other Income [Abstract]  
Schedule of Other Assets, Noncurrent [Table Text Block]
   
March 31,
2014
   
December 31,
 2013
 
Long-term assets:
           
Advance coal royalties
  $ 4,655     $ 4,693  
Deferred financing costs, net
    1,120       1,195  
Marketable equity securities available for sale,
  at fair value (restricted)*
    2,353       3,889  
Ohio River Terminal (see Note 7)
    2,790       2,836  
Other
    5,887       4,792  
    $ 16,805     $ 17,405  
    Three months ended
March 31,
 
   
2014
   
2013
 
Other income:
           
   MSHA reimbursements*
  $     $ 2,053  
   Coal storage fees
    63       232  
   Miscellaneous
    220       176  
    $ 283     $ 2,461