XML 29 R17.htm IDEA: XBRL DOCUMENT v3.7.0.1
Capitalization (Tables)
3 Months Ended
Mar. 31, 2017
CAPITALIZATION:  
Schedule of carrying amount and fair value of bonds

 

 

   March 31, 2017  December 31, 2016
   Carrying  Fair  Carrying  Fair
   Amount  Value  Amount  Value
Bonds  $82,453   $84,535   $82,786   $84,821