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Pension and Other Benefits (Details) - Schedule of Changes in Fair Value of Plan Assets - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | $ 13,023 | $ 12,609
Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 13,023 | 12,609
Real Estate Fund [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 55 | 64
Real Estate Fund [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Real Estate Fund [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Real Estate Fund [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 55 | 64
Debt And Fixed Income Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 4,651 | 6,139
Debt And Fixed Income Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Debt And Fixed Income Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Debt And Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 4,651 | 6,139
International Companies [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 901 | 1,056
International Companies [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
International Companies [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
International Companies [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 901 | 1,056
Us Companies [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 6,957 | 5,175
Us Companies [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Us Companies [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Us Companies [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 6,957 | 5,175
Cash [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 298 | 175
Cash [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Cash [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Cash [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 298 | $ 175
Commodity funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | 161 |
Commodity funds [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Commodity funds [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets |  |
Commodity funds [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Pension Plan Assets | $ 161 |

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