Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Net accumulated other comprehensive income:
Net unrealized gain on investment securities available-for-sale	$ 12,544	$ 684
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(1,761)	100
Net actuarial loss on defined benefit post-retirement benefit plans	(361)	(378)
Net accumulated other comprehensive income	$ 10,422	$ 406