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REVENUE RECOGNITION (Tables)
 12 Months Ended
Dec. 31, 2018
REVENUE RECOGNITION [Abstract]  
Disaggregation Revenues
The following table shows the Company’s revenues disaggregated by service type; all revenues are generated within a similar geographical location:

  
For the Year
 
  
Ended December 31,
 
(in thousands)
 
2018
  
2017
 
Tariff Revenue
      
Consumption charges
 
$
47,903
  
$
46,669
 
Fixed fees
  
25,401
   
24,998
 
Service charges
  
717
   
921
 
DSIC
  
2,797
   
3,160
 
Revenue reserved for refund – TCJA impact
  
(3,234
)
  
—
 
Total Tariff Revenue
 
$
73,584
  
$
75,748
 
         
Non-Tariff Revenue
        
Service line protection plans
 
$
3,992
  
$
3,858
 
Contract operations
  
1,352
   
1,315
 
Inspection fees
  
211
   
170
 
Total Non-Tariff Revenue
 
$
5,555
  
$
5,343
 
         
Other Operating Revenue not in scope of ASC 606
 
$
1,272
  
$
1,144
 
         
Total Operating Revenue
 
$
80,411
  
$
82,235
 
Contract Assets and Contract Liabilities
Our contract assets and liabilities consist of the following:

(in thousands)
 
December 31, 2018
  
December 31, 2017
 
Accounts Receivable
      
Accounts Receivable–Tariff
 
$
5,751
  
$
5,631
 
Accounts Receivable–Non-Tariff
  
320
   
403
 
Total Accounts Receivable
 
$
6,071
  
$
6,034
 
         
Contract Assets – Tariff
 
$
2,367
  
$
2,397
 
         
Deferred Revenue
        
Deferred Revenue – Tariff
 
$
1,025
  
$
1,053
 
Deferred Revenue – Non-Tariff
  
227
   
203
 
Total Deferred Revenue
 
$
1,252
  
$
1,256
 
         
Refund Liability – Tariff
 
$
3,298
  
$
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