FAIR VALUE (Reconciliation of All Assets Measured at Fair Value on a Recurring Basis using Significant Unobservable Inputs (Level 3)) (Details) - State and Municipal Securities - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 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	(7)
Principal payments	0	(45)
Balance of recurring Level 3 assets at December 31	$ 150	$ 828