Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest income:
Interest and fees on loans	$ 34,588	$ 34,053
Interest and dividends on taxable investment securities	5,383	5,810
Interest on tax-exempt investment securities	655	537
Other interest income	236	176
Total interest income	40,862	40,576
Interest expense:
Interest on deposits	4,629	4,844
Interest on short-term borrowings	1,039	1,173
Interest on long-term borrowings	558	645
Total interest expense	6,226	6,662
Net interest income	34,636	33,914
Provision for (recovery of) credit losses (a)	16,969	(263)
Net interest income after provision for (recovery of) credit losses	17,667	34,177
Non-interest income:
Insurance income	4,130	4,621
Mortgage banking income	750	788
Bank owned life insurance income	582	485
Net gain on investment securities	319	30
Net loss on asset disposals and other transactions	(87)	(182)
Other non-interest income	437	1,101
Total non-interest income	15,737	15,429
Non-interest expense:
Salaries and employee benefit costs	19,918	19,202
Net occupancy and equipment expense	3,154	2,978
Electronic banking expense	1,865	1,577
Data processing and software expense	1,752	1,545
Professional fees	1,693	1,276
Amortization of other intangible assets	729	694
Franchise tax expense	882	705
Marketing expense	473	594
Foreclosed real estate and other loan expenses	578	255
Communication expense	280	278
FDIC insurance premium	(5)	371
Other non-interest expense	3,006	2,385
Total non-interest expense	34,325	31,860
(Loss) income before income taxes	(921)	17,746
Income tax (benefit) expense	(156)	3,377
Net (loss) income	$ (765)	$ 14,369
(Loss) earnings per common share - basic	$ (0.04)	$ 0.74
(Loss) earnings per common share - diluted	$ (0.04)	$ 0.73
Weighted-average number of common shares outstanding - basic	20,367,564	19,366,008
Weighted-average number of common shares outstanding - diluted	20,538,214	19,508,868
Cash dividends declared	$ 7,038	$ 5,868
Cash dividends declared per common share	$ 0.34	$ 0.30
Credit and Debit Card [Member]
Non-interest income:
Revenue from Contract with Customer, Including Assessed Tax	$ 3,280	$ 2,987
Deposit Account [Member]
Non-interest income:
Revenue from Contract with Customer, Including Assessed Tax	2,820	2,341
Fiduciary and Trust [Member]
Non-interest income:
Revenue from Contract with Customer, Including Assessed Tax	3,262	3,112
Interest Rate Swap [Member] | Transaction fee [Member]
Non-interest income:
Revenue from Contract with Customer, Including Assessed Tax	$ 244	$ 146