Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016		Dec. 31, 2015
Supplemental Schedule of Cash and Cash Equivalents:
Cash and due from banks	$ 23,765	$ 21,625	$ 20,268	[1]
Interest-bearing deposits in other banks	62,164	51,716	32,939	[1]
Cash and Cash Equivalents	85,929	73,341	$ 53,207		$ 95,337
Cash paid for:
Interest on deposits and borrowed funds	3,250	3,183
Income taxes	3,707	3,397
Noncash investing and financing activities:
Transfer of loans to other real estate owned	513	97
Unrealized gains on securities available for sale	$ 1,300	$ 2,217

[1] Derived from audited consolidated financial statements.