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	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Balance of recurring Level 3 assets at January 1	$ 670	$ 551
Transfers into Level 3	0	339
Changes in fair value of securities included in other comprehensive income	(7)	0
Principal payments	(45)	(210)
Balance of recurring Level 3 assets at September 30	$ 618	$ 680