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Capitalization (Tables)
3 Months Ended
Mar. 31, 2013
Capitalization Tables  
Carrying amount and estimated fair value

The carrying amount and fair market value of the Company’s bonds were as follows:

 

 

   March 31, 2013   December 31, 2012 
   Carrying   Fair   Carrying   Fair 
   Amount   Value   Amount   Value 
First Mortgage Bonds  $85,590   $87,714   $91,938   $93,556 
SRF Bonds  $701   $705   $708   $712