Condensed Consolidated Statements of Income and Comprehensive Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020		Sep. 30, 2019
Interest income:
Interest and fees on loans, including loans held for sale	$ 39,577	$ 41,781	$ 121,306		$ 124,009
Interest and dividends on securities
Taxable	3,220	3,086	9,133		9,338
Tax exempt	629	552	1,752		1,810
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock	129	207	407		764
Interest on Federal Reserve Bank deposits	61	1,330	645		3,641
Other, including interest on federal funds sold	10	31	50		131
Total interest income	43,626	46,987	133,293		139,693
Interest expense:
Interest on deposits	4,975	8,649	17,229		25,680
Interest on repurchase agreements and federal funds purchased	691	1,169	2,472		3,516
Interest on advances from Federal Home Loan Bank	0	0	0		39
Interest on long-term debt	280	650	1,206		1,929
Total interest expense	5,946	10,468	20,907		31,164
Net interest income	37,680	36,519	112,386		108,529
Provision for credit losses	2,433	1,253	15,091	[1]	3,006
Net interest income after provision for credit losses	35,247	35,266	97,295		105,523
Noninterest income:
Service charges on deposit accounts	6,296	6,859	17,179		19,504
Gains on sales of loans, net	2,470	450	4,706		1,298
Trust and wealth management income	2,692	2,725	8,145		8,065
Loan related fees	1,383	622	2,300		1,635
Bank owned life insurance	602	590	1,739		1,837
Brokerage revenue	310	418	995		978
Securities gains	142	14	1,328		574
Other noninterest income	1,016	711	2,919		2,920
Total noninterest income	14,911	12,389	39,311		36,811
Noninterest expense:
Officer salaries and employee benefits	3,115	2,812	8,970		9,483
Other salaries and employee benefits	13,022	12,208	37,351		37,583
Occupancy, net	2,029	2,031	5,952		5,894
Equipment	695	776	2,102		2,264
Data processing	1,936	1,987	5,789		5,539
Bank franchise tax	1,815	1,656	5,439		5,054
Legal fees	467	555	1,440		1,409
Professional fees	534	577	1,617		1,654
Advertising and marketing	797	894	1,999		2,560
FDIC insurance	295	(280)	736		266
Other real estate owned provision and expense	505	2,476	1,975		4,271
Repossession expense	285	334	595		823
Amortization of limited partnership investments	984	745	2,792		2,688
Other noninterest expense	2,994	3,111	8,846		9,507
Total noninterest expense	29,473	29,882	85,603		88,995
Income before income taxes	20,685	17,773	51,003		53,339
Income taxes	3,238	2,504	7,325		4,807
Net income	17,447	15,269	43,678		48,532
Unrealized holding gains on debt securities available-for-sale:
Unrealized holding gains arising during the period	2,107	2,538	12,340		15,184
Less: Reclassification adjustments for realized gains (losses) included in net income	24	(2)	1,069		4
Tax expense	541	664	2,930		3,640
Other comprehensive income, net of tax	1,542	1,876	8,341		11,540
Comprehensive income	$ 18,989	$ 17,145	$ 52,019		$ 60,072
Basic earnings per share (in dollars per share)	$ 0.98	$ 0.86	$ 2.46		$ 2.74
Diluted earnings per share (in dollars per share)	$ 0.98	$ 0.86	$ 2.46		$ 2.74
Weighted average shares outstanding-basic (in shares)	17,746	17,726	17,746		17,720
Weighted average shares outstanding-diluted (in shares)	17,752	17,743	17,753		17,733

[1] Effective January 1, 2020, the provision for loan losses became the provision for credit losses with the implementation of ASU 2016-13, commonly referred to as CECL.