Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 2,105	$ 1,537
Securities available for sale:
Unrealized holding gains (losses) on available-for-sale securities	2,369	(2,964)
Tax effect	(498)	623
Reclassification adjustment for net gains realized in net income		(20)
Tax effect		4
Total securities available-for-sale	1,871	(2,357)
Change in post-retirement obligations	7	(8)
Total other comprehensive income (loss)	1,878	(2,365)
Total comprehensive income (loss)	$ 3,983	$ (828)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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