SECURITIES (Schedule of allowance for credit loss for securities held to maturity) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 51
Impact of ASU 2016-13 adoption	51
Ending balance	48
Obligations of states and political subdivisions
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning balance	51	$ 0
Impact of ASU 2016-13 adoption	51	197
Provision (benefit) for credit losses	(3)	39
Ending balance	48	197
Obligations of states and political subdivisions | Cumulative Effect, Period of Adoption, Adjustment
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	158
Impact of ASU 2016-13 adoption	0	158
Obligations of states and political subdivisions | Cumulative Effect, Period of Adoption, Adjusted Balance
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning balance	51	158
Impact of ASU 2016-13 adoption	$ 51	$ 158