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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Schedule of Utility Plant
Utility plant comprises:
 
  
 
In thousands
 
  
 
 
 
  
December 31,
 
 
 
Estimated Useful Life
(In Years)
  
2014
  
2013
 
Utility plant at original cost
 
  
  
 
Utility plant in service-Water
 
  
  
 
Intangible plant
  
—
  
$
140
  
$
140
 
Source of supply plant
  
45-85
   
19,029
   
17,778
 
Pumping and water treatment plant
  
8-62
   
73,432
   
65,089
 
Transmission and distribution plant
            
Mains
  
81
   
216,174
   
205,759
 
Services
  
39
   
34,708
   
32,912
 
Storage tanks
  
76
   
23,943
   
23,895
 
Meters
  
26
   
22,460
   
21,585
 
Hydrants
  
60
   
11,540
   
10,964
 
General plant
  
3-31
   
52,081
   
49,593
 
 
            
Utility plant in service-Wastewater
            
Treatment and Disposal Plant
  
35-62
   
12,815
   
12,420
 
Collection Mains & Lift Stations
  
81
   
6,900
   
6,745
 
General plant
  
3-31
   
883
   
860
 
 
            
Property held for future use
  
—
   
14,440
   
14,865
 
Construction work in progress
  
—
   
3,180
   
5,793
 
 
      
491,725
   
468,398
 
Less – accumulated depreciation
      
97,932
   
89,438
 
 
     
$
393,793
  
$
378,960
 
Regulatory Assets, Net of Amortization
Regulatory assets at December 31, net of amortization, comprise:

In thousands
 
2014
  
2013
 
 
 
  
 
Postretirement benefit obligation
 
$
384
  
$
438
 
Deferred income taxes
  
461
   
476
 
Goodwill
  
325
   
333
 
Deferred acquisition and franchise costs
  
756
   
792
 
Expense of rate and regulatory proceedings
  
635
   
265
 
 Regulatory assets, net
 
$
2,561
  
$
2,304
 
Other Deferred Assets, Net of Amortization
Other deferred assets at December 31, net of amortization, comprise:

In thousands
 
2014
  
2013
 
 
 
  
 
Debt issuance cost
 
$
1,869
  
$
1,989
 
Investment in Co-Bank
  
2,851
   
2,680
 
Other
  
461
   
503
 
 
 
$
5,181
  
$
5,172
 
Weighted-average Assumptions Used for Grants Issued
 
2014
 
2013
 
2012
Expected Dividend Yield
 
3.88%
 
 
3.63%
 
 
4.18%
Expected Stock Price Volatility
 
26.50%
 
 
26.16%
 
 
25.13%
Weighted Average Risk Free Interest Rate
 
2.24%
 
 
1.68%
 
 
1.87%
Weighted Average Expected Life of Options (in years)
 
7.52
 
 
9.41
 
 
9.47
Changes in Accounts Receivable
 
December 31,
 
In thousands
2014
 
2013
 
2012
 
 
 
 
 
Customer accounts receivable – water
 
$
4,020
  
$
3,902
  
$
3,988
 
Other
  
1,295
   
1,434
   
1,981
 
 
  
5,315
   
5,336
   
5,969
 
Less allowance for doubtful accounts
  
250
   
221
   
241
 
Net accounts receivable
 
$
5,065
  
$
5,115
  
$
5,728
 
Allowance for Doubtful Accounts
The activities in the allowance for doubtful accounts are as follows:

 
December 31,
 
In thousands
2014
 
2013
 
2012
 
 
 
 
 
Beginning balance
 
$
221
  
$
241
  
$
216
 
Allowance adjustments
  
194
   
180
   
215
 
Recoveries
  
64
   
115
   
141
 
Write off of uncollectible accounts
  
(229
)
  
(315
)
  
(331
)
Ending balance
 
$
250
  
$
221
  
$
241