Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Sources of non-interest income [Abstract]
Other	[1]	$ 876	$ 824	$ 2,303	$ 2,286
Total non-interest income		4,455	4,854	13,629	14,085
Overdraft Fees [Member]
Sources of non-interest income [Abstract]
Non-interest income		935	921	2,586	2,657
Other [Member]
Sources of non-interest income [Abstract]
Non-interest income		125	124	335	357
Interchange Income [Member]
Sources of non-interest income [Abstract]
Non-interest income		1,003	1,141	3,478	3,658
Wealth Management Fees [Member]
Sources of non-interest income [Abstract]
Non-interest income		$ 1,516	$ 1,844	$ 4,927	$ 5,127

[1] Not within the scope of ASC 606.