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REGULATORY ASSETS (Tables)
9 Months Ended
Sep. 30, 2016
REGULATORY ASSETS [Abstract]  
Regulatory assets, net of amortization, comprise
Regulatory assets, net of amortization, comprise:
 
  
(in thousands)
 
  
September 30, 2016
  
December 31, 2015
 
       
Postretirement benefit obligation
 
$
329
  
$
329
 
Debt issuance costs
  
1,656
   
1,747
 
Deferred income taxes
  
435
   
446
 
Goodwill
  
312
   
318
 
Deferred acquisition and franchise costs
  
692
   
720
 
Expense of rate and regulatory proceedings
  
212
   
616
 
  
$
3,636
  
$
4,176