Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income: Before Tax Amount		$ 1,356	$ 1,333	$ 4,215	$ 4,660
Net Income: Tax Effect		29	(127)	66	(701)
Net income: Net-of-Tax Amount		1,385	1,206	4,281	3,959
Other comprehensive income (loss):
Unrealized holding (losses) gains arising during the period: Before Tax Amount		(645)	(20)	(3,340)	882
Unrealized holding (losses) gains arising during the period: Tax Effect		135	7	701	(300)
Unrealized holding (losses) gains arising during the period: Net-of-Tax Amount		(510)	(13)	(2,639)	582
Unrealized holding gains from unconsolidated subsidiary: Before Tax Amount			(3)	5	12
Unrealized holding gains from unconsolidated subsidiary: Net-of-Tax Amount			(3)	5	12
Less reclassification adjustment for losses (gains) included in net income: Before Tax Amount	[1],[2]		(2)	15	(510)
Less reclassification adjustment for losses (gains) included in net income: Tax Effect	[1],[2]		1	(3)	174
Less reclassification adjustment for losses (gains) included in net income: Net-of-Tax Amount	[1],[2]		(1)	12	(336)
Unrecognized pension net gain: Before Tax Amount	[2],[3]	(55)		(55)
Unrecognized pension net gain: Tax Effect	[2],[3]	12		12
Unrecognized pension net gain: Net-of-Tax Amount	[2],[3]	(43)		(43)
Unrecognized pension gain due to change in assumptions: Before Tax Amount		1,010		1,010
Unrecognized pension gain due to change in assumptions: Tax Effect		(212)		(212)
Unrecognized pension gain due to change in assumptions: Net-of-Tax Amount		798		798
Amortization of pension net actuarial cost: Before Tax Amount	[2],[3]	242	57	323	170
Amortization of net pension actuarial cost: Tax Effect	[2],[3]	(51)	(20)	(68)	(58)
Amortization of net pension actuarial cost: Net-of-Tax Amount	[2],[3]	191	37	255	112
Other comprehensive income (loss): Before Tax Amount		552	32	(2,042)	554
Other comprehensive income (loss): Tax Effect		(116)	(12)	430	(184)
Other comprehensive income (loss): Net-of-Tax Amount		436	20	(1,612)	370
Total comprehensive income: Before Tax Amount		1,908	1,365	2,173	5,214
Total comprehensive income: Tax Effect		(87)	(139)	496	(885)
Total comprehensive income: Net-of-Tax Amount		$ 1,821	$ 1,226	$ 2,669	$ 4,329

[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.