AMOUNT RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Accumulated Comprehensive income reclassified from AOCI [Line Items]
Realized gain (loss) on securities available-for-sale	$ (166)	$ (59)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	100	100
Defined Benefit Plan, Amortization of Gain (Loss)	(625)	(525)
Other Comprehensive Income, Reclassification, Amortization of Defined Benefit Plans items, Pre-tax	(525)	(425)
Total	$ (691)	$ (484)