ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Reclassification Adjustments Out of Accumulated Other Comprehensive Income) (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Unrealized gains/(losses) on investments available-for-sale Affected line item in the Statements of Income:
Investment securities gains		$ 82	$ 0	$ 145	$ 1,275
Income before taxes		82	0	145	1,275
Tax expense		$ (22)	$ 0	(38)	(508)
Net income				107	767
Amortization of defined benefit pension plan items Affected line item in the Statements of Income:
Recognized actuarial loss	[1]			(750)	(886)
Income before taxes				(750)	(886)
Tax expense				250	364
Net income/ (Loss)				$ (500)	$ (522)

[1] This amount is included in the computation of net periodic benefit cost, see Note 10.