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PENSION AND OTHER POSTRETIREMENT PLANS (Schedule of Amounts Recognized in Balance Sheet) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Pension Benefits |  |
Defined Benefit Plan Disclosure |  |
Funded status included in other liabilities | $ (361) | $ (243)
SERP Benefits |  |
Defined Benefit Plan Disclosure |  |
Funded status included in other liabilities | $ (89) | $ (77)

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