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PENSION AND OTHER POSTRETIREMENT PLANS (Schedule of Fair Values of Pension Plan and Postretirement Plan Assets by Asset Category) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits $ 2,059 $ 1,905
Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 996 984
Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 2,007 1,851
Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 939 926
Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 52 54
Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 57 58
Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap common stocks [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 550 495
Equity securities - US large cap common stocks [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 132 125
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 550 495
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 132 125
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap common stocks [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap stock mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 335 204
Equity securities - US large cap stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 380 347
Equity securities - US large cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 335 204
Equity securities - US large cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 380 347
Equity securities - US large cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US large cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US mid cap stock mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 138 130
Equity securities - US mid cap stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 40 39
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 138 130
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 40 39
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US mid cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US small cap stock mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 53 46
Equity securities - US small cap stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 15 14
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 53 46
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 15 14
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - US small cap stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - international stock mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 147 148
Equity securities - international stock mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 49 49
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 147 148
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 49 49
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity securities - international stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity Securities - emerging markets stock mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 24 22
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 24 22
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Equity Securities - emerging markets stock mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - high yield bond mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 22
Debt securities - high yield bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 22
Debt securities - high yield bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - high yield bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - intermediate term bond mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 413 275
Debt securities - intermediate term bond mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 153 96
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 413 275
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 153 96
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - intermediate term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - short term bond mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 288 257
Debt securities - short term bond mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 166 153
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 288 257
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 166 153
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - short term bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - world bond mutual funds [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   87
Debt securities - world bond mutual funds [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   30
Debt securities - world bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   87
Debt securities - world bond mutual funds [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   30
Debt securities - world bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   0
Debt securities - world bond mutual funds [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   0
Debt securities - world bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   0
Debt securities - world bond mutual funds [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits   0
Debt securities - commercial [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 52 54
Debt securities - commercial [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 57 58
Debt securities - commercial [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - commercial [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - commercial [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 52 54
Debt securities - commercial [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 57 58
Debt securities - commercial [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Debt securities - commercial [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Cash - money market account [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 59 187
Cash - money market account [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 4 51
Cash - money market account [Member] | Fair Value, Inputs, Level 1 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 59 187
Cash - money market account [Member] | Fair Value, Inputs, Level 1 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 4 51
Cash - money market account [Member] | Fair Value, Inputs, Level 2 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Cash - money market account [Member] | Fair Value, Inputs, Level 2 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Cash - money market account [Member] | Fair Value, Inputs, Level 3 [Member] | Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits 0 0
Cash - money market account [Member] | Fair Value, Inputs, Level 3 [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Assets for Plan Benefits $ 0 $ 0