AMOUNT RECLASSIFIED FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Accumulated Comprehensive income reclassified from AOCI [Line Items]
Realized gain (loss) on securities available-for-sale	$ 2	$ 105	$ (55)	$ (110)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	106	104	308	310
Defined Benefit Plan, Amortization of Gain (Loss)	(625)	(451)	(1,709)	(1,352)
Other Comprehensive Income, Reclassification, Amortization of Defined Benefit Plans items, Pre-tax	(519)	(347)	(1,401)	(1,042)
Total	$ (517)	$ (242)	$ (1,456)	$ (1,152)