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PENSION PLAN (Tables)
 12 Months Ended
Dec. 31, 2016
PENSION PLAN [Abstract]  
Schedule of plan's funded status
The following table sets forth the plan's funded status and amounts recognized in the consolidated financial statements:

  
Year Ended December 31,
 
  
2016
  
2015
  
2014
 
CHANGES IN BENEFIT OBLIGATIONS:
         
Benefit obligation-beginning of year
 
$
23,341
  
$
24,299
  
$
20,314
 
Service cost
  
28
   
28
   
23
 
Interest cost
  
888
   
884
   
892
 
Actuarial (gain) loss
  
(255
)
  
(782
)
  
4,149
 
Benefits paid
  
(1,086
)
  
(1,088
)
  
(1,079
)
Benefit obligation at end of year
  
22,916
   
23,341
   
24,299
 
             
CHANGE IN PLAN ASSETS:
            
Fair value of plan assets-beginning of year
  
17,792
   
19,000
   
18,792
 
Actual return on plan assets
  
842
   
(120
)
  
1,017
 
Employer contributions
  
-
   
-
   
270
 
Benefits paid
  
(1,086
)
  
(1,088
)
  
(1,079
)
Fair value of plan assets-end of year
  
17,548
   
17,792
   
19,000
 
             
BENEFIT OBLIGATION IN EXCESS OF FAIR VALUE FUNDED STATUS:
 
$
(5,368
)
 
$
(5,549
)
 
$
(5,299
)
Amounts recognized in consolidated balance sheets
Amounts recognized in the consolidated balance sheets consist of:

  
At December 31,
 
  
2016
  
2015
  
2014
 
Noncurrent liabilities
 
$
(5,368
)
 
$
(5,549
)
 
$
(5,299
)
Amounts recognized in accumulated other comprehensive loss
Amounts recognized in accumulated other comprehensive loss consist of:

  
Year Ended December 31,
 
  
2016
  
2015
  
2014
 
Accumulated loss
 
$
(8,467
)
 
$
(9,438
)
 
$
(9,833
)
Deferred income taxes
  
2,366
   
2,366
   
2,366
 
Accumulated other comprehensive loss
 
$
(6,101
)
 
$
(7,072
)
 
$
(7,467
)
Components of net periodic cost for plan
The following table provides the components of net periodic cost for the plan:

  
Year Ended December 31,
 
  
2016
  
2015
  
2014
 
COMPONENTS OF NET PERIODIC BENEFIT COST
         
Service cost
 
$
28
  
$
28
  
$
23
 
Interest cost
  
888
   
884
   
892
 
Expected return on plan assets
  
(1,118
)
  
(1,243
)
  
(1,287
)
Recognized net actuarial loss
  
991
   
976
   
513
 
Net periodic benefit cost
 
$
789
  
$
645
  
$
141
 
Plan assets using fair value hierarchy
The following tables present plan assets using the fair value hierarchy as of December 31, 2016 and 2015. The fair value hierarchy has three levels based on the reliability of inputs used to determine fair value. Level 1 refers to fair values determined based on quoted prices in active markets for identical assets. Level 2 refers to fair values estimated using observable prices that are based on inputs not quoted in active markets but observable by market data, while Level 3 includes the fair values estimated using significant non-observable inputs. The level in the fair value hierarchy within which the fair value measurement falls is determined based on the lowest level input that is significant to the fair value measurement in its entirety.

  
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
  
Significant Other
Observable Inputs
(Level 2)
  
Significant
Unobservable
Inputs
(Level 3)
  
Total
 
Equity securities
 
$
8,509
  
$
-
  
$
-
  
$
8,509
 
Fixed income
  
6,548
   
-
   
-
   
6,548
 
International equities
  
2,484
   
-
   
-
   
2,484
 
Cash and equivalents
  
7
   
-
   
-
   
7
 
Balance at December 31, 2016
 
$
17,548
  
$
-
  
$
-
  
$
17,548
 

  
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
  
Significant Other
Observable Inputs
(Level 2)
  
Significant
Unobservable
Inputs
(Level 3)
  
Total
 
Equity securities
 
$
8,473
  
$
-
  
$
-
  
$
8,473
 
Fixed income
  
5,943
   
-
   
-
   
5,943
 
International equities
  
3,288
   
-
   
-
   
3,288
 
Cash and equivalents
  
88
   
-
   
-
   
88
 
Balance at December 31, 2015
 
$
17,792
  
$
-
  
$
-
  
$
17,792
 
Fair value of total plan assets by major asset category
Fair value of total plan assets by major asset category as of December 31:

  
2016
  
2015
  
2014
 
Equity securities
  
49
%
  
48
%
  
50
%
Fixed income
  
37
%
  
33
%
  
32
%
International equities
  
14
%
  
19
%
  
18
%
Cash and equivalents
  
0
%
  
0
%
  
0
%
Total
  
100
%
  
100
%
  
100
%
Expected benefit payments for plan
Information about the expected benefit payments for the plan is as follows:

Year Ending December 31,
   
2017
 
$
1,257
 
2018
  
1,323
 
2019
  
1,357
 
2020
  
1,369
 
2021
  
1,376
 
Years 2022-2026
  
7,039
 
Benefit Obligations [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Weighted-average assumptions used
Weighted-average assumptions used to determine benefit obligations as of December 31:

  
2016
  
2015
  
2014
 
Discount rate
  
3.81
%
  
3.94
%
  
3.66
%
Rate of compensation increase
  
2.50
%
  
2.50
%
  
1.13
%
Periodic Pension Cost [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Weighted-average assumptions used
Weighted-average assumptions used to determine net periodic pension cost for years ended December 31:

  
2016
  
2015
  
2014
 
Discount rate
  
3.81
%
  
3.94
%
  
4.46
%
Rate of compensation increase
  
2.50
%
  
2.50
%
  
1.13
%
Long-term rate of return
  
6.25
%
  
6.50
%
  
7.00
%