Statements Of Consolidated Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statements Of Consolidated Comprehensive Income [Abstract]
NET INCOME		$ 2,216	$ 2,509	$ 5,933	$ 6,089
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX:
Unrealized (loss) gain on available-for-sale securities		(376)	412	533	106
Defined benefit pension plans:
Amortization of prior service cost	[1]	5	23	15	33
Amortization of actuarial assumptions	[1]	35	13	105	74
Net change, Net-of-Tax Amount		40	36	120	107
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX		(336)	448	653	213
COMPREHENSIVE INCOME		$ 1,880	$ 2,957	$ 6,586	$ 6,302

[1] Included in net periodic pension cost, as described in Note 9 - "Net Periodic Benefit Costs"