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Capitalization (Tables)
3 Months Ended
Mar. 31, 2019
CAPITALIZATION:  
Schedule of carrying amount and fair value of bonds

The carrying amount and fair value of the Bonds were as follows:

 

 

  March 31, 2019 December 31, 2018
  Carrying Fair Carrying Fair
  Amount Value Amount Value
Bonds $100,910 $103,247 $101,411 $102,789