Consolidated Statements of Income - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest and Dividend Income:
Interest and fees on loans	$ 87,040,000	$ 87,700,000	$ 82,684,000
Interest and dividends on securities:
Taxable	7,309,000	6,764,000	7,682,000
Tax-exempt	385,000	433,000	777,000
Dividends	464,000	503,000	451,000
Other interest income	598,000	440,000	1,261,000
Total interest and dividend income	95,796,000	95,840,000	92,855,000
Interest Expense:
Interest on deposits	3,645,000	9,729,000	13,143,000
Interest on short-term borrowings	22,000	259,000	650,000
Interest on subordinated debt	203,000	489,000	367,000
Interest on junior subordinated debt	1,535,000	1,543,000	1,554,000
Interest on long-term borrowings	0	0	14,000
Total interest expense	5,405,000	12,020,000	15,728,000
Net Interest Income	90,391,000	83,820,000	77,127,000
Provision for (recovery of) loan losses	(2,825,000)	8,916,000	456,000
Net Interest Income after Provision for (Recovery of) Loan Losses	93,216,000	74,904,000	76,671,000
Noninterest Income:
Securities gains, net	35,000	814,000	607,000
Income from Small Business Investment Companies	1,972,000	270,000	211,000
Income from insurance investments	1,199,000	321,000	328,000
Losses on premises and equipment, net	(885,000)	(110,000)	(427,000)
Other	932,000	763,000	885,000
Total noninterest income	21,031,000	16,843,000	15,170,000
Noninterest Expense:
Salaries and employee benefits	32,342,000	29,765,000	30,015,000
Occupancy and equipment	6,032,000	5,586,000	5,417,000
FDIC assessment	864,000	639,000	119,000
Bank franchise tax	1,767,000	1,702,000	1,644,000
Amortization of intangible assets	1,464,000	1,637,000	1,398,000
Data processing	2,958,000	3,017,000	2,567,000
Software	1,368,000	1,454,000	1,295,000
Other real estate owned, net	131,000	60,000	31,000
Merger related expenses	0	0	11,782,000
Other	12,082,000	10,705,000	11,806,000
Total noninterest expense	59,008,000	54,565,000	66,074,000
Income Before Income Taxes	55,239,000	37,182,000	25,767,000
Income Taxes	11,713,000	7,137,000	4,861,000
Net Income	$ 43,526,000	$ 30,045,000	$ 20,906,000
Net Income Per Common Share:
Basic (in dollars per share)	$ 4.00	$ 2.74	$ 1.99
Diluted (in dollars per share)	$ 4.00	$ 2.73	$ 1.98
Weighted Average Common Shares Outstanding:
Basic (in shares)	10,873,817	10,981,623	10,531,572
Diluted (in shares)	10,877,231	10,985,790	10,541,337
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest Income	$ 6,019,000	$ 4,789,000	$ 4,568,000
Deposit Account [Member]
Noninterest Income:
Noninterest Income	2,611,000	2,557,000	2,866,000
Interchange Service [Member]
Noninterest Income:
Noninterest Income	4,152,000	3,213,000	2,964,000
Financial Service, Other [Member]
Noninterest Income:
Noninterest Income	801,000	712,000	729,000
Mortgage Banking [Member]
Noninterest Income:
Noninterest Income	$ 4,195,000	$ 3,514,000	$ 2,439,000