Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Net accumulated other comprehensive income:
Net unrealized gain on investment securities available-for-sale	$ (4,190)	$ (10,143)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	1,590	2,038
Net actuarial loss on defined benefit post-retirement benefit plans	7	(23)
Net accumulated other comprehensive income	$ (2,593)	$ (8,128)