Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	[1]
Supplemental Schedule of Cash and Cash Equivalents:
Cash and due from banks	$ 47,025	$ 32,688	$ 29,587
Interest-bearing deposits in other banks	95,592	37,355	$ 34,668
Cash and Cash Equivalents	142,617	70,043
Cash paid for:
Interest on deposits and borrowed funds	10,983	6,702
Income taxes	3,577	3,776
Noncash investing and financing activities:
Transfer of loans to other real estate owned	234	532
Transfer from premises and equipment to other assets	445
Increase in operating lease right-of-use asset upon adoption of ASU 2016-02	4,413
Increase in operating lease liability upon adoption of ASU 2016-02	4,413
Unrealized gains (losses) on securities available for sale	9,369	(7,226)
Unrealized (losses) gains on cash flow hedges	(2,673)
Unrealized (losses) gains on cash flow hedges		201
Assets acquired:
Investment securities	34,876	0
Restricted stock	2,588	0
Loans	444,324	0
Premises and equipment	12,554	0
Deferred income taxes	2,329	0
Core deposit intangible	8,200	0
Other real estate owned	1,442	0
Bank owned life insurance	8,246	0
Other assets	14,244	0
Liabilities assumed:
Deposits	483,626	0
Short-term FHLB advances	14,883
Long-term FHLB advances	778
Subordinated debt	7,530
Other liabilities	5,780	0
Consideration:
Issuance of common stock	82,470	0
Fair value of replacement stock options/restricted stock	$ 753	$ 0

[1] Derived from audited consolidated financial statements.