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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
[1] This category represents trust receivables that are not leveled.

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