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PENSION PLAN (Tables)
 12 Months Ended
Dec. 31, 2015
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,
 
  
2015
  
2014
  
2013
 
CHANGES IN BENEFIT OBLIGATIONS:
         
Benefit obligation-beginning of year
 
$
24,299
  
$
20,314
  
$
23,169
 
Service cost
  
28
   
23
   
37
 
Interest cost
  
884
   
892
   
790
 
Actuarial (gain) loss
  
(782
)
  
4,149
   
(2,614
)
Benefits paid
  
(1,088
)
  
(1,079
)
  
(1,068
)
Benefit obligation at end of year
  
23,341
   
24,299
   
20,314
 
             
CHANGE IN PLAN ASSETS:
            
Fair value of plan assets-beginning of year
  
19,000
   
18,792
   
16,268
 
Actual return on plan assets
  
(120
)
  
1,017
   
2,919
 
Employer contributions
  
-
   
270
   
673
 
Benefits paid
  
(1,088
)
  
(1,079
)
  
(1,068
)
Fair value of plan assets-end of year
  
17,792
   
19,000
   
18,792
 
             
BENEFIT OBLIGATION IN EXCESS OF FAIR VALUE FUNDED STATUS:
 
$
(5,549
)
 
$
(5,299
)
 
$
(1,522
)
Amounts recognized in consolidated balance sheets
Amounts recognized in the consolidated balance sheets consist of:

  
At December 31,
 
  
2015
  
2014
  
2013
 
Noncurrent liabilities
 
$
(5,549
)
 
$
(5,299
)
 
$
(1,522
)
Amounts recognized in accumulated other comprehensive loss
Amounts recognized in accumulated other comprehensive loss consist of:

  
Year Ended December 31,
 
  
2015
  
2014
  
2013
 
Accumulated loss
 
$
(9,438
)
 
$
(9,833
)
 
$
(5,928
)
Deferred income taxes
  
2,366
   
2,366
   
2,366
 
Accumulated other comprehensive loss
 
$
(7,072
)
 
$
(7,467
)
 
$
(3,562
)
Components of net periodic cost for plan
The following table provides the components of net periodic cost for the plan:

  
Year Ended December 31,
 
  
2015
  
2014
  
2013
 
COMPONENTS OF NET PERIODIC BENEFIT COST
         
Service cost
 
$
28
  
$
23
  
$
37
 
Interest cost
  
884
   
892
   
790
 
Expected return on plan assets
  
(1,243
)
  
(1,287
)
  
(1,141
)
Recognized net actuarial loss
  
976
   
513
   
955
 
Net periodic benefit cost
 
$
645
  
$
141
  
$
641
 
Plan assets using fair value hierarchy
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
 
$
8,473
  
$
-
  
$
-
  
$
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
 

  
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
  
Significant Other
Observable Inputs
(Level 2)
  
Significant
Unobservable
Inputs
(Level 3)
  
Total
 
Equity securities
 
$
9,566
  
$
-
  
$
-
  
$
9,566
 
Fixed income
  
6,099
   
-
   
-
   
6,099
 
International equities
  
3,328
   
-
   
-
   
3,328
 
Cash and equivalents
  
7
   
-
   
-
   
7
 
Balance at December 31, 2014
 
$
19,000
  
$
-
  
$
-
  
$
19,000
 
Fair value of total plan assets by major asset category
Fair value of total plan assets by major asset category as of December 31:

  
2015
  
2014
  
2013
 
Equity securities
  
48
%
  
50
%
  
51
%
Fixed income
  
33
%
  
32
%
  
31
%
International equities
  
19
%
  
18
%
  
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,
   
2016
 
$
1,225
 
2017
  
1,303
 
2018
  
1,373
 
2019
  
1,408
 
2020
  
1,416
 
Years 2021-2025
  
7,232
 
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:

  
2015
  
2014
  
2013
 
Discount rate
  
3.94
%
  
3.66
%
  
4.46
%
Rate of compensation increase
  
2.50
%
  
1.13
%
  
2.00
%
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:

  
2015
  
2014
  
2013
 
Discount rate
  
3.94
%
  
4.46
%
  
3.55
%
Rate of compensation increase
  
2.50
%
  
1.13
%
  
2.00
%
Long-term rate of return
  
6.50
%
  
7.00
%
  
7.00
%