Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net income	$ 16,924	$ 12,805	$ 8,090
Adjustments to reconcile net income to net cash provided by operating activities:
Net premium amortization (discount accretion)	(2,547)	1,406	4,034
Depreciation and amortization expense	5,547	3,642	3,265
Provision for loan losses	900	800	1,000
Share-based compensation	1,586	1,493	1,386
Gain on sales of loans originated for sale	(2,613)	(2,144)	(2,447)
Mortgage loans originated for sale	112,568	90,305	104,512
Proceeds from sales of loans originated for sale	108,885	94,727	103,131
Gain on sale of portfolio loans	0	(291)	(32)
Net gain on disposal of OREO	(156)	(108)	(18)
Writedown of OREO	0	24	4
Net loss (gain) on disposal of premises and equipment	139	12	(18)
Deferred income taxes	1,776	543	3,078
Investment securities gains	(4,749)	(1,006)	(1,190)
Income from life insurance	(2,044)	(1,463)	(1,109)
Increase in accrued interest receivable	1,248	(879)	(376)
Increase in accrued interest payable and other liabilities	(5,291)	2,696	2,012
Other, net	2,053	535	52
Net cash provided by operating activities	9,090	22,487	16,350
Cash flows from investing activities
Proceeds from sale of AFS securities	199,928	156,364	162,320
Maturities, repayments and calls of AFS securities	33,265	18,373	28,768
Purchases of AFS securities	(190,530)	(226,014)	(203,719)
Net cash and cash equivalents received from acquisitions	29,442	12,407	0
Net purchases of restricted investments in bank stocks	(2,684)	(592)	(2,027)
Net increase in loans	(46,157)	(99,828)	(130,791)
Proceeds from sales of portfolio loans	0	3,589	2,195
Purchases of bank premises and equipment	(2,911)	(4,791)	(2,653)
Proceeds from disposal of OREO	1,318	1,413	541
Purchases of bank owned life insurance	(3,280)	(900)	(600)
Death benefit proceeds from life insurance contracts	571	576	0
Other	0	7	74
Net cash provided by (used in) investing activities	18,962	(139,396)	(145,892)
Cash flows from financing activities
Net (decrease) increase in deposits	(71,561)	178,798	67,063
Net increase (decrease) in borrowings with original maturities less than 90 days	115,800	(14,507)	(34,288)
Proceeds from Short-term Debt, Maturing in More than Three Months	0	25,000	70,000
Payments on other short-term borrowings	(25,000)	(40,000)	(30,000)
Proceeds from long-term debt	20,000	0	80,000
Payments on long-term debt	(91,776)	(365)	(20,348)
Proceeds from subordinated notes, net of issuance costs	0	31,857	0
Payment of subordinated notes issuance costs	(59)	0	0
Dividends paid	(6,150)	(4,375)	(3,488)
Treasury shares repurchased for employee taxes associated with restricted stock vesting	(1,772)	(651)	0
Proceeds from issuance of stock for option exercises and employee stock purchase plan	113	160	137
Net cash (used in) provided by financing activities	(60,405)	175,917	129,076
Net (decrease) increase in cash and cash equivalents	(32,353)	59,008	(466)
Cash and cash equivalents at beginning of year	88,815	29,807	30,273
Cash and cash equivalents at end of year	56,462	88,815	29,807
Supplemental disclosure of cash flow information:
Cash paid for interest	24,313	12,930	7,586
Cash paid for income taxes	0	60	1,638
Supplemental schedule of noncash investing and financing activities:
Other real estate acquired in settlement of loans	161	539	1,007
Premises and equipment transferred to held for sale	$ 4,894	$ 1,003	$ 0