Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income: Before Tax Amount		$ 1,603	$ 1,538	$ 2,859	$ 3,327
Net Income: Tax Effect		(34)	(244)	37	(574)
Net income: Net-of-Tax Amount		1,569	1,294	2,896	2,753
Other comprehensive (loss) income:
Unrealized holding (losses) gains arising during the period: Before Tax Amount		(528)	644	(2,695)	902
Unrealized holding (losses) gains arising during the period: Tax Effect		111	(219)	566	(307)
Unrealized holding (losses) gains arising during the period: Net-of-Tax Amount		(417)	425	(2,129)	595
Unrealized holding gains from unconsolidated subsidiary: Before Tax Amount		16	6	5	15
Unrealized holding gains from unconsolidated subsidiary: Net-of-Tax Amount		16	6	5	15
Less reclassification adjustment for losses (gains) included in net income: Before Tax Amount	[1],[2]		(4)	15	(508)
Less reclassification adjustment for losses (gains) included in net income: Tax Effect	[1],[2]		2	(3)	173
Less reclassification adjustment for losses (gains) included in net income: Net-of-Tax Amount	[1],[2]		(2)	12	(335)
Amortization of pension net actuarial cost: Before Tax Amount	[2],[3]	40	57	81	113
Amortization of net pension actuarial cost: Tax Effect	[2],[3]	(8)	(19)	(17)	(38)
Amortization of net pension actuarial cost: Net-of-Tax Amount	[2],[3]	32	38	64	75
Other comprehensive (loss) income: Before Tax Amount		(472)	703	(2,594)	522
Other comprehensive (loss) income: Tax Effect		103	(236)	546	(172)
Other comprehensive (loss) income: Net-of-Tax Amount		(369)	467	(2,048)	350
Total comprehensive income: Before Tax Amount		1,131	2,241	265	3,849
Total comprehensive income: Tax Effect		69	(480)	583	(746)
Total comprehensive income: Net-of-Tax Amount		$ 1,200	$ 1,761	$ 848	$ 3,103

[1] Amounts are included in (loss) gain on sales and calls of securities on the consolidated statements of income as a separate element within total non-interest income.

[2] Income tax amounts are included in the provision for income taxes on the consolidated statements of income.

[3] Amounts are included in the computation of net periodic benefit cost and are included in employee benefits expense on the consolidated statements of income as a separate element within total non-interest expense.