Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income		$ 1,901	$ 1,894	$ 5,728	$ 4,901
Other comprehensive income (loss):
Unrealized (losses) gains arising during the period on available for sale securities, net of income taxes, respectively		(677)	898	1,543	128
Reclassification adjustment for net gain on sales of available for sale securities included in net income, net of income taxes, respectively	[1]	(132)	(91)	(272)	(208)
Change in defined benefit plans, net of income taxes, respectively	[2]	(11)	2	(127)	7
Total other comprehensive income (loss)		(820)	809	1,144	(73)
Total comprehensive income		$ 1,081	$ 2,703	$ 6,872	$ 4,828

[1] Amounts are included in net gain on sales of investment securities on the Consolidated Statements of Income as a separate element within total noninterest income.

[2] Amounts are included in the computation of net periodic benefit cost and are included in salaries and employee benefits on the Consolidated Statements of Income as a separate element within total noninterest expense.