Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income: Before Tax Amount		$ 990	$ 1,356	$ 4,324	$ 4,215
Net Income: Tax Effect		103	29	27	472
Net income: Net-of-Tax Amount		1,093	1,385	4,351	4,687
Other comprehensive income (loss):
Unrealized holding gains (losses) arising during the period: Before Tax Amount		802	(645)	4,317	(3,340)
Unrealized holding gains (losses) arising during the period: Tax Effect		(168)	135	(906)	701
Unrealized holding losses arising during the period: Net-of-Tax Amount		634	(510)	3,411	(2,639)
Unrealized holding gain from unconsolidated subsidiary: Before Tax Amount					5
Unrealized holding gain from unconsolidated subsidiary: Net-of-Tax Amount					5
Pension net loss (gain): Before Tax Amount		(235)	(55)	2,399	(55)
Pension net loss (gain): Tax Effect		49	12	(504)	12
Pension net loss (gain): Net-of-Tax Amount		(186)	(43)	1,895	(43)
Pension (loss) gain due to change in assumptions: Before Tax Amount			1,010	(1,478)	1,010
Pension (loss) gain due to change in assumptions: Tax Effect			(212)	310	(212)
Pension (loss) gain due to change in assumptions: Net-of-Tax Amount			798	(1,168)	798
Less reclassification adjustment for losses included in net income for sales of debt securities: Before Tax Amount	[1],[2]			56	15
Less reclassification adjustment for losses (gains) included in net income for sales of debt securities: Tax Effect	[1],[2]			(12)	(3)
Less reclassification adjustment for: gains included in net income: Net-of-Tax Amount	[1],[2]			44	12
Amortization of pension net actuarial loss: Before Tax Amount	[2],[3]	942	242	1,276	323
Amortization of net pension actuarial loss: Tax Effect	[2],[3]	(198)	(51)	(268)	(68)
Amortization of net pension actuarial cost: Net-of-Tax Amount	[2],[3]	744	191	1,008	255
Other comprehensive income (loss): Before Tax Amount		1,509	552	6,570	(2,042)
Other comprehensive income (loss): Tax Effect		(317)	(116)	(1,380)	430
Other comprehensive income (loss): Net-of-Tax Amount		1,192	436	5,190	(1,612)
Total comprehensive income: Before Tax Amount		2,499	1,908	10,894	2,173
Total comprehensive income: Tax Effect		(214)	(87)	(1,353)	902
Total comprehensive income: Net-of-Tax Amount		$ 2,285	$ 1,821	$ 9,541	$ 3,075

[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.