Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 4,277	$ 3,986
Unrealized gains/(losses) on securities:
Unrealized holding gain (loss) arising during the period	6	(571)
Reclassification adjustment for other than temporary impairment included in net income	508	0
Reclassification adjustment for gains included in net income	(346)	(82)
Other comprehensive income (loss) on securities	168	(653)
Tax effect	(56)	222
Net of tax	112	(431)
Defined benefit pension plans:
Net loss arising during the period	(588)	(671)
Reclassification adjustment for amortization of prior service benefit and net loss included in net periodic pension cost	239	220
Defined benefit pension plans	(349)	(451)
Tax effect	73	153
Net of tax	(276)	(298)
Total other comprehensive loss	(164)	(729)
Comprehensive income	$ 4,113	$ 3,257