SECURITIES (Held-to-maturity Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of Held-to-maturity Securities [Line Items]
Total investment securities	$ 88,890	$ 91,324
Gross Unrealized Gains	11,151	9,160
Gross Unrealized Losses	0	0
Estimated Fair Value	100,041	100,484
Debt Securities, Held-to-maturity, Allowance for Credit Loss	(51)	0
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Total investment securities	88,890	91,324
Gross Unrealized Gains	11,151	9,160
Gross Unrealized Losses	0	0
Estimated Fair Value	100,041	100,484
Debt Securities, Held-to-maturity, Allowance for Credit Loss	$ (51)	$ 0