PENSION PLAN (Details) (USD $) | 12 Months Ended |
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 |
CHANGES IN BENEFIT OBLIGATIONS [Roll Forward] | | | |
Benefit obligation-beginning of year | $20,314,000 | $23,169,000 | $21,233,000 |
Service cost | 23,000 | 37,000 | 35,000 |
Interest cost | 892,000 | 790,000 | 872,000 |
Actuarial loss (gain) | 4,149,000 | -2,614,000 | 1,926,000 |
Benefits paid | -1,079,000 | -1,068,000 | -897,000 |
Benefit obligation at end of year | 24,299,000 | 20,314,000 | 23,169,000 |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-beginning of year | 18,792,000 | 16,268,000 | 14,639,000 |
Actual return on plan assets | 1,017,000 | 2,919,000 | 1,807,000 |
Employer contributions | 270,000 | 673,000 | 719,000 |
Benefits paid | -1,079,000 | -1,068,000 | -897,000 |
Fair value of plan assets-end of year | 19,000,000 | 18,792,000 | 16,268,000 |
BENEFIT OBLIGATION IN EXCESS OF FAIR VALUE FUNDED STATUS: | -5,299,000 | -1,522,000 | -6,901,000 |
Amounts recognized in the consolidated balance sheets [Abstract] | | | |
Noncurrent liabilities | -5,299,000 | -1,522,000 | -6,901,000 |
Amounts recognized in accumulated other comprehensive loss [Abstract] | | | |
Accumulated loss | -9,833,000 | -5,928,000 | -11,276,000 |
Deferred income taxes | 2,366,000 | 2,366,000 | 4,500,000 |
Accumulated other comprehensive loss | -7,467,000 | -3,562,000 | -6,776,000 |
Decrease in plan benefit obligation | 2,100,000 | | |
Change in mortality assumption | 2,000,000 | | |
Projected period for annuitants | 7 years | | |
Projected period for non-annuitants | 15 years | | |
Accumulated benefit obligation | 24,300,000 | 20,300,000 | |
Components of net periodic benefit cost [Abstract] | | | |
Service cost | 23,000 | 37,000 | 35,000 |
Interest cost | 892,000 | 790,000 | 872,000 |
Expected return on plan assets | -1,287,000 | -1,141,000 | -1,021,000 |
Recognized net actuarial loss | 513,000 | 955,000 | 1,056,000 |
Net periodic benefit cost | 141,000 | 641,000 | 942,000 |
Amortization of estimated net loss, transition obligation and prior service cost from accumulated other comprehensive income into net periodic benefit cost | 900,000 | | |
Pension plan adjustments | 3,905,000 | -3,214,000 | 60,000 |
Actuarial loss | 500,000 | | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 19,000,000 | 18,792,000 | 16,268,000 |
Fair value of total plan assets by major asset category (in hundredths) | 100.00% | 100.00% | 100.00% |
Weighted-average assumptions used to determine benefit obligations [Abstract] | | | |
Discount rate (in hundredths) | 3.66% | 4.46% | 3.55% |
Rate of compensation increase (in hundredths) | 6.75% | 2.00% | 1.75% |
Weighted-average assumptions used to determine net periodic pension cost [Abstract] | | | |
Pension Contributions | 300,000 | 700,000 | |
Expected benefit payments for the plan [Abstract] | | | |
Maximum contribution by employee specified as percentage of compensation (in hundredths) | 25.00% | | |
Additional contribution by employer (in hundredths) | 30.00% | | |
Maximum percentage of compensation contributed by employer as matching contribution (in hundredths) | 6.00% | | |
Compensation expense for the 401(k) plan | 1,600,000 | 1,900,000 | 2,000,000 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 19,000,000 | 18,792,000 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 19,000,000 | 18,792,000 | |
Significant Other Observable Inputs (Level 2) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Significant Unobservable Inputs (Level 3) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Equity Securities [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-beginning of year | 9,491,000 | | |
Fair value of plan assets-end of year | 9,566,000 | | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 9,566,000 | | |
Fair value of total plan assets by major asset category (in hundredths) | 50.00% | 51.00% | 46.00% |
Expected benefit payments for the plan [Abstract] | | | |
Target plan asset allocations, minimum (in hundredths) | 30.00% | | |
Target plan asset allocations, maximum (in hundredths) | 70.00% | | |
Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 9,566,000 | 9,491,000 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 9,566,000 | 9,491,000 | |
Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Fixed Income [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-beginning of year | 5,787,000 | | |
Fair value of plan assets-end of year | 6,099,000 | | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 6,099,000 | | |
Fair value of total plan assets by major asset category (in hundredths) | 32.00% | 31.00% | 36.00% |
Expected benefit payments for the plan [Abstract] | | | |
Target plan asset allocations, minimum (in hundredths) | 20.00% | | |
Target plan asset allocations, maximum (in hundredths) | 60.00% | | |
Fixed Income [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 6,099,000 | 5,787,000 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 6,099,000 | 5,787,000 | |
Fixed Income [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Fixed Income [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
International Equities [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 3,328,000 | 3,484,000 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 3,328,000 | 3,484,000 | |
Fair value of total plan assets by major asset category (in hundredths) | 18.00% | 18.00% | 18.00% |
International Equities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 3,328,000 | 3,484,000 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 3,328,000 | 3,484,000 | |
International Equities [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
International Equities [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Cash and Equivalents [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-beginning of year | 30,000 | | |
Fair value of plan assets-end of year | 7,000 | | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 7,000 | | |
Fair value of total plan assets by major asset category (in hundredths) | 0.00% | 0.00% | 0.00% |
Expected benefit payments for the plan [Abstract] | | | |
Target plan asset allocations, minimum (in hundredths) | 0.00% | | |
Target plan asset allocations, maximum (in hundredths) | 10.00% | | |
Cash and Equivalents [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 7,000 | 30,000 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 7,000 | 30,000 | |
Cash and Equivalents [Member] | Significant Other Observable Inputs (Level 2) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Cash and Equivalents [Member] | Significant Unobservable Inputs (Level 3) [Member] | | | |
CHANGE IN PLAN ASSETS [Roll Forward] | | | |
Fair value of plan assets-end of year | 0 | 0 | |
Plan assets using the fair value hierarchy [Abstract] | | | |
Fair value of plan assets | 0 | 0 | |
Pension Plan [Member] | | | |
Weighted-average assumptions used to determine net periodic pension cost [Abstract] | | | |
Discount rate (in hundredths) | 4.46% | 3.55% | 4.10% |
Rate of compensation increase (in hundredths) | 1.13% | 2.00% | 4.00% |
Long-term rate of return (in hundredths) | 7.00% | 7.00% | 7.00% |
Expected benefit payments for the plan [Abstract] | | | |
2015 | 1,132,000 | | |
2016 | 1,187,000 | | |
2017 | 1,269,000 | | |
2018 | 1,360,000 | | |
2019 | 1,390,000 | | |
Years 2020-2024 | $7,129,000 | | |