Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Interest income
Loans, including fees		$ 37,000	$ 33,749
Federal funds sold and interest bearing due from banks		66	531
Mortgage loans held for sale		64	61
Federal Home Loan Bank stock		57	71
Securities available for sale:
Taxable		2,295	2,395
Tax-exempt		36	75
Total interest income		39,518	36,882
Interest expense
Deposits		1,510	3,962
Securities sold under agreements to repurchase		5	16
Federal funds purchased and other short-term borrowings		2	29
Federal Home Loan Bank advance		176	429
Total interest expense		1,693	4,436
Net interest income		37,825	32,446
Provision for credit losses		(1,475)	5,925
Net interest income after credit loss expense		39,300	26,521
Non-interest income:
Non-interest income		6,248	6,218
Mortgage banking income	[1]	1,444	846
Bank owned life insurance	[1]	161	179
Total non-interest income		13,844	12,536
Non-interest expenses
Compensation		12,827	12,233
Employee benefits		3,261	3,167
Net occupancy and equipment		2,045	1,831
Technology and communication		2,346	2,063
Debit and credit card processing		705	656
Marketing and business development		524	560
Postage, printing and supplies		409	441
Legal and professional		862	623
FDIC insurance		405	129
Amortization of investments in tax credit partnerships		31	36
Capital and deposit based taxes		458	1,030
Other		1,100	806
Total non-interest expenses		24,973	23,575
Income before income tax expense		28,171	15,482
Income tax expense		5,461	2,250
Net income		$ 22,710	$ 13,232
Net income per share, basic (in dollars per share)		$ 1.00	$ 0.59
Net income per share, diluted (in dollars per share)		$ 0.99	$ 0.58
Weighted average outstanding shares
Basic (in shares)		22,622	22,516
Diluted (in shares)		22,865	22,736
Fiduciary and Trust [Member]
Non-interest income:
Non-interest income		$ 6,248	$ 6,218
Deposit Account [Member]
Non-interest income:
Non-interest income		944	1,283
Credit and Debit Card [Member]
Non-interest income:
Non-interest income		2,273	1,980
Treasury Management [Member]
Non-interest income:
Non-interest income		1,540	1,284
Investment Advisory, Management and Administrative Service [Member]
Non-interest income:
Non-interest income		464	466
Product and Service, Other [Member]
Non-interest income:
Non-interest income		$ 770	$ 280

[1] Outside of the scope of ASC 606.