PENSION PLAN - Summary of activity (Details) - USD ($)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
May 31, 2014 |
| Compensation and Retirement Disclosure [Abstract] |
|
|
|
|
| Discount rate used to re-measure pension obligation |
4.05%
|
4.30%
|
3.90%
|
4.46%
|
| Pension expense |
$ 273
|
$ 256
|
$ 469
|
|
| Change in benefit obligation |
|
|
|
|
| Benefit obligation at beginning of year |
8,662
|
8,173
|
|
|
| Service cost |
0
|
0
|
346
|
|
| Interest cost |
367
|
315
|
306
|
|
| Actuarial loss |
4
|
276
|
|
|
| Assumption changes |
179
|
97
|
|
|
| Curtailment impact |
0
|
0
|
|
|
| Benefits paid |
(191)
|
(199)
|
|
|
| Benefit obligation at end of year |
9,021
|
8,662
|
8,173
|
|
| Change in plan assets: |
|
|
|
|
| Fair value of plan assets at beginning of year |
4,486
|
4,471
|
|
|
| Actual return on plan assets |
96
|
(124)
|
|
|
| Employer contribution |
182
|
338
|
|
|
| Benefits paid |
(191)
|
(199)
|
|
|
| Fair value of plan assets at end of year |
4,573
|
4,486
|
$ 4,471
|
|
| Funded status |
(4,448)
|
(4,176)
|
|
|
| Unrecognized net actuarial loss |
4,464
|
4,283
|
|
|
| Unrecognized prior service cost |
0
|
0
|
|
|
| Prepaid pension cost recognized |
16
|
107
|
|
|
| Accumulated benefit obligation |
$ 9,021
|
$ 8,662
|
|
|