FAIR VALUE DISCLOSURES (Reconciliation of All Assets Measured at Fair Value on a Recurring Basis using Significant Unobservable Inputs (Level 3)) (Details) - State and Municipal Securities [Member] - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Balance of recurring Level 3 assets at January 1	$ 150	$ 880
Changes in fair value of securities included in other comprehensive income	0	(4)
Principal payments	0	(45)
Balance of recurring Level 3 assets at December 31	$ 150	$ 831

FAIR VALUE DISCLOSURES (Reconciliation of All Assets Measured at Fair Value on a Recurring Basis using Significant Unobservable Inputs (Level 3)) (Details) - State and Municipal Securities [Member] - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2019

Mar. 31, 2018

Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]

Balance of recurring Level 3 assets at January 1

$ 150

$ 880

Changes in fair value of securities included in other comprehensive income

(4)

Principal payments

(45)

Balance of recurring Level 3 assets at December 31

$ 150

$ 831