CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Interest and dividend income
Loans and leases, including fees	$ 95,898		$ 87,792		$ 68,227
Taxable securities	10,139		9,548		8,614
Tax-exempt securities	4,534		4,060		3,711
Dividend income on securities					16
Federal funds sold and other	376		238		356
Total interest income	110,947		101,638		80,924
Interest expense
Deposits	11,380		7,260		3,762
Short-term borrowings	362		253		93
Subordinated debentures	1,836		1,731		1,368
Total interest expense	13,578		9,244		5,223
Net interest income	97,369		92,394		75,701
Provision (benefit) for loan losses	2,550		4,350		(1,140)
Net interest income after provision for loan and lease losses	94,819		88,044		76,841
Non-interest income
Service charges on deposits	12,742		12,439		11,230
Gain on sale of loans					3
Checkcard fees	6,584		5,878		4,955
Net (losses) gains on sale of securities available-for-sale	(198)	[1]	2	[1]	500
Increase in cash surrender value of life insurance	2,184		591		1,640
Other income	2,165		2,654		3,451
Total non-interest income	23,477		21,564		21,779
Non-interest expense
Salaries and employee benefits	35,978	[1]	36,133	[1]	31,506
Occupancy and equipment	9,845	[1]	10,295	[1]	9,590
Acquisition costs	22		449		2,225
Other	24,733		23,147		22,120
Total non-interest expense	70,578		70,024		65,441
Income before income taxes	47,718		39,584		33,179
Provision for income taxes	11,757		9,907		13,640
Net income	$ 35,961		$ 29,677		$ 19,539
Earnings per share
Basic	$ 2.35		$ 1.94		$ 1.38
Diluted	$ 2.33		$ 1.92		$ 1.36
Weighted average shares outstanding, basic	15,311,113		15,261,794		14,172,196
Weighted average shares outstanding, diluted	15,437,111		15,432,120		14,357,782

[1] Not within the scope of ASC 606. Revenue streams are not related to contracts with customers and are accounted for on an accrual basis under other provisions of GAAP.