EMPLOYEE RETIREMENT PLANS (Details 6) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | $ 37,353 | $ 38,369 |
Subtotal [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 37,247 | 38,276 |
Common stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 15,160 | 15,483 |
Preferred stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 307 | 347 |
Exchange traded funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 4,454 | 5,546 |
Corporate obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 4,568 | 5,867 |
State and municipal obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 1,046 | 1,313 |
Pooled fixed income funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 7,767 | 6,895 |
U.S. government securities [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 286 | 381 |
Marketable CD [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 911 | |
Cash and cash equivalents [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 2,748 | 2,444 |
Other assets [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | [1] | 106 | 93 |
Fair Value, Inputs, Level 1 [Member] | Subtotal [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 28,804 | 29,030 |
Fair Value, Inputs, Level 1 [Member] | Common stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 13,556 | 13,855 |
Fair Value, Inputs, Level 1 [Member] | Preferred stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 279 | 290 |
Fair Value, Inputs, Level 1 [Member] | Exchange traded funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 4,454 | 5,546 |
Fair Value, Inputs, Level 1 [Member] | Corporate obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | State and municipal obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Pooled fixed income funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 7,767 | 6,895 |
Fair Value, Inputs, Level 1 [Member] | U.S. government securities [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 1 [Member] | Marketable CD [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | |
Fair Value, Inputs, Level 1 [Member] | Cash and cash equivalents [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 2,748 | 2,444 |
Fair Value, Inputs, Level 2 [Member] | Subtotal [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 8,443 | 9,246 |
Fair Value, Inputs, Level 2 [Member] | Common stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 1,604 | 1,628 |
Fair Value, Inputs, Level 2 [Member] | Preferred stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 28 | 57 |
Fair Value, Inputs, Level 2 [Member] | Exchange traded funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | Corporate obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 4,568 | 5,867 |
Fair Value, Inputs, Level 2 [Member] | State and municipal obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 1,046 | 1,313 |
Fair Value, Inputs, Level 2 [Member] | Pooled fixed income funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 2 [Member] | U.S. government securities [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 286 | 381 |
Fair Value, Inputs, Level 2 [Member] | Marketable CD [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 911 | |
Fair Value, Inputs, Level 2 [Member] | Cash and cash equivalents [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Subtotal [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Common stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Preferred stocks [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Exchange traded funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Corporate obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | State and municipal obligations [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Pooled fixed income funds [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | U.S. government securities [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | Marketable CD [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | 0 | |
Fair Value, Inputs, Level 3 [Member] | Cash and cash equivalents [Member] | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair Value of Pension Plan Assets, Total | | $ 0 | $ 0 |
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[1] | This category represents trust receivables that are not leveled. | |