Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest Income
Interest and fees on loans	$ 52,352,000	$ 33,208,000	$ 99,356,000	$ 65,082,000
Interest and dividends on investment securities:
Taxable	11,794,000	7,547,000	23,567,000	13,770,000
Tax-exempt	950,000	1,205,000	2,112,000	2,421,000
Interest on deposits in depository institutions	2,585,000	782,000	4,176,000	1,020,000
Total Interest Income	67,681,000	42,742,000	129,211,000	82,293,000
Interest Expense
Interest on deposits	8,567,000	1,328,000	14,257,000	2,849,000
Interest on customer repurchase agreements	2,963,000	124,000	5,344,000	238,000
Interest on FHLB long-term advances	649,000	0	649,000	0
Total Interest Expense	12,179,000	1,452,000	20,250,000	3,087,000
Net Interest Income	55,502,000	41,290,000	108,961,000	79,206,000
Provision for (recovery of) credit losses	425,000	0	3,343,000	(756,000)
Net Interest Income After Provision for (Recovery of) Credit Losses	55,077,000	41,290,000	105,618,000	79,962,000
Non-Interest Income
Gains on sale of investment securities, net	0	0	773,000	0
Unrealized gains (losses) recognized on equity securities still held, net	(294,000)	(601,000)	67,000	(1,324,000)
Bank owned  life insurance	3,208,000	978,000	4,012,000	2,992,000
Other income	952,000	1,243,000	2,278,000	2,034,000
Total Non-Interest Income	20,301,000	17,849,000	38,983,000	35,297,000
Non-Interest Expense
Salaries and employee benefits	18,429,000	16,413,000	36,102,000	31,990,000
Occupancy related expense	2,811,000	2,620,000	5,451,000	5,329,000
Equipment and software related expense	2,883,000	2,732,000	5,975,000	5,501,000
FDIC insurance expense	690,000	409,000	1,135,000	844,000
Advertising	974,000	951,000	1,734,000	1,749,000
Bankcard expenses	1,736,000	1,665,000	3,245,000	3,271,000
Postage, delivery, and statement mailings	596,000	551,000	1,243,000	1,187,000
Office supplies	591,000	427,000	1,011,000	837,000
Legal and professional fees	558,000	525,000	1,028,000	1,052,000
Telecommunications	623,000	754,000	1,229,000	1,338,000
Repossessed asset losses (gains), net of expenses	22,000	(32,000)	38,000	8,000
Merger related expenses	0	0	5,645,000	0
Other expenses	4,848,000	3,674,000	9,548,000	7,110,000
Total Non-Interest Expense	34,761,000	30,689,000	73,384,000	60,216,000
Income Before Income Taxes	40,617,000	28,450,000	71,217,000	55,043,000
Income tax expense	7,884,000	5,767,000	14,143,000	11,018,000
Net Income Available to Common Shareholders	$ 32,733,000	$ 22,683,000	$ 57,074,000	$ 44,025,000
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Average shares outstanding, basic (in shares)	14,994	14,888	14,897	14,930
Effect of dilutive securities (in shares)	18	21	22	24
Average shares outstanding, diluted (in shares)	15,012	14,909	14,919	14,954
Earnings Per Share [Abstract]
Basic earnings per common share (in dollars per share)	$ 2.16	$ 1.51	$ 3.80	$ 2.92
Diluted earnings per common share (in dollars per share)	$ 2.16	$ 1.51	$ 3.79	$ 2.92
Service charges
Non-Interest Income
Revenue from contract with customer	$ 6,906,000	$ 7,067,000	$ 13,469,000	$ 13,792,000
Bankcard revenue
Non-Interest Income
Revenue from contract with customer	7,190,000	7,062,000	13,793,000	13,506,000
Trust and investment management fee income
Non-Interest Income
Revenue from contract with customer	$ 2,339,000	$ 2,100,000	$ 4,591,000	$ 4,297,000