Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other comprehensive (loss) income, net of tax:
Unrealized holding (losses) gains on securities arising during the current period, tax	$ (356)	$ 912	$ (1,646)
Reclassification adjustment due to gains realized on sales of securities, tax	(12)	(19)	(2)
Officers' retirement plan equity adjustments, tax	11	(132)	125
Directors' retirement plan equity adjustments, tax	(16)	(3)	25
Total other comprehensive (loss) income	$ (373)	$ 758	$ (1,498)