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EMPLOYEE BENEFIT PLANS - Funded status of Retirement Income Plan (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CHANGE IN PLAN ASSETS:
Funded status at end of year	$ (413)	$ (978)
AMOUNTS (PRE-TAX) RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) CONSIST OF:
Amounts recognized in other comprehensive income before tax, Total	(163)	(782)
Retirement Income Plan
Defined Benefit Plan Disclosure [Line Items]
ACCUMULATED BENEFIT OBLIGATION, END OF YEAR	5,695	5,292
CHANGE IN PROJECTED BENEFIT OBLIGATION:
Benefit obligation at beginning of year	5,292	4,986
Service cost
Interest cost	253	267	266
Actuarial loss	379	266
Benefits paid	(229)	(228)
Projected benefit obligation at end of year	5,695	5,292	4,986
CHANGE IN PLAN ASSETS:
Fair value of plan assets at beginning of year	4,313	4,672
Actual return on plan assets	484	(231)
Employer contributions	714	100
Benefits paid	(229)	(228)
Fair value of plan assets at end of year	5,282	4,313	4,672
Funded status at end of year	(413)	(978)
AMOUNTS RECOGNIZED IN THE CONSOLIDATED BALANCE SHEETS CONSIST OF:
Noncurrent assets
Current liabilities
Noncurrent liabilities	(413)	(978)
Amounts recognized in balance sheet, Total	(413)	(978)
AMOUNTS (PRE-TAX) RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) CONSIST OF:
Net loss	2,748	2,585
Prior service cost (credit)
Net transition obligation (asset)
Amounts recognized in other comprehensive income before tax, Total	$ 2,748	$ 2,585

X

- 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) from a decision to temporarily deviate from the substantive plan, or from a change in benefit obligation or plan asset value from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale.

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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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Before tax amount, net of reclassification adjustments, of the (increase) decrease in the value of the projected benefit obligation and the increase (decrease) in the value of the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost.

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Before tax amount, net of reclassification adjustments, of the benefit improvement costs resulting from a plan amendment that occurred that has not been recognized in net periodic benefit cost.

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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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