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EMPLOYEE BENEFIT PLANS - Funded status of Retirement Income Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CHANGE IN PLAN ASSETS:
Funded status at end of year		$ (341)
Retirement Income Plan
Defined Benefit Plan Disclosure [Line Items]
ACCUMULATED BENEFIT OBLIGATION, END OF YEAR	$ 5,703	6,355
CHANGE IN PROJECTED BENEFIT OBLIGATION:
Benefit obligation at beginning of year	$ 6,355	$ 4,873
Service cost
Interest cost	$ 259	$ 261	$ 235
Actuarial (gain) loss	(671)	1,450
Benefits paid	(240)	(229)
Projected benefit obligation at end of year	5,703	6,355	4,873
CHANGE IN PLAN ASSETS:
Fair value of plan assets at beginning of year	6,014	5,887
Actual return on plan assets	(131)	221
Employer contributions	170	135
Benefits paid	(240)	(229)
Fair value of plan assets at end of year	5,813	6,014	$ 5,887
Funded status at end of year	110	$ (341)
AMOUNTS RECOGNIZED IN THE CONSOLIDATED BALANCE SHEETS CONSIST OF:
Noncurrent assets	$ 110
Current liabilities
Noncurrent liabilities		$ (341)
Amounts recognized in balance sheet, Total	$ 110	(341)
AMOUNTS (PRE-TAX) RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE LOSS CONSIST OF:
Net loss	$ 2,944	$ 3,139
Prior service cost (credit)
Net transition obligation (asset)
Amounts recognized in other comprehensive income before tax, Total	$ 2,944	$ 3,139

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- Definition

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

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Before tax amount of net transition assets (obligations) which has yet to be recognized as a component of net periodic benefit cost.

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

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The aggregate net amount recognized in the balance sheet associated with the defined benefit plan(s). Will normally be the same as the Defined Benefit Plan, Funded Status of Plan, Total.

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Amount before tax, after reclassification adjustments, of actuarial gain (loss) that has not been recognized in the income statement.

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Amount before tax, after reclassification adjustments, of prior service cost (credit) that has not been recognized in the income statement.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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The increase in the fair value of plan assets from contributions made by the employer.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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Amount before tax, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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