Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest income
Loans, including fees	$ 43,807,000	$ 33,656,000	$ 113,061,000	$ 100,430,000
Securities, taxable	2,005,000	1,341,000	5,568,000	3,580,000
Securities, tax-exempt	697,000	600,000	1,928,000	1,795,000
Other interest-earning assets	1,620,000	291,000	3,004,000	642,000
Total interest income	48,129,000	35,888,000	123,561,000	106,447,000
Interest expense
Deposits	2,299,000	2,184,000	5,997,000	7,247,000
Short-term borrowings	53,000	46,000	153,000	122,000
Federal Home Loan Bank advances	1,755,000	2,072,000	5,530,000	6,149,000
Subordinated debt and other borrowings	1,646,000	462,000	4,294,000	1,401,000
Total interest expense	5,753,000	4,764,000	15,974,000	14,919,000
Net interest income	42,376,000	31,124,000	107,587,000	91,528,000
Provision for credit losses	2,900,000	1,900,000	3,500,000	(900,000)
Net interest income after provision for credit losses	39,476,000	29,224,000	104,087,000	92,428,000
Noninterest income:
Mortgage banking income	1,764,000	6,554,000	6,991,000	23,049,000
Interest rate swap fees	566,000	3,938,000	2,347,000	6,086,000
Payroll services income	533,000	412,000	1,635,000	1,374,000
Earnings on bank owned life insurance	238,000	298,000	1,310,000	872,000
Gain on sale of branch	0	0	0	1,058,000
Other income	487,000	1,095,000	1,399,000	1,916,000
Total noninterest income	7,253,000	15,568,000	24,272,000	43,587,000
Noninterest expense
Salaries and benefits	16,656,000	15,975,000	47,842,000	47,255,000
Occupancy	2,001,000	2,030,000	6,168,000	6,021,000
Furniture and equipment depreciation, rent and maintenance	953,000	929,000	2,822,000	2,719,000
Data processing costs	3,139,000	2,746,000	9,203,000	8,138,000
Charitable foundation contribution	4,000	0	509,000	0
Other expense	4,003,000	4,530,000	12,896,000	13,386,000
Total noninterest expenses	26,756,000	26,210,000	79,440,000	77,519,000
Income before federal income tax expense	19,973,000	18,582,000	48,919,000	58,496,000
Federal income tax expense	3,943,000	3,531,000	9,659,000	11,114,000
Net income	$ 16,030,000	$ 15,051,000	$ 39,260,000	$ 47,382,000
Basic earnings per share (in dollars per share)	$ 1.01	$ 0.95	$ 2.48	$ 2.95
Diluted earnings per share (in dollars per share)	1.01	0.95	2.48	2.95
Cash dividends per share (in dollars per share)	$ 0.32	$ 0.30	$ 0.94	$ 0.88
Average basic shares outstanding (in shares)	15,861,551	15,859,955	15,850,422	16,084,806
Average diluted shares outstanding (in shares)	15,861,551	15,860,314	15,850,439	16,085,274
Service Charges on Deposit and Sweep Accounts [Member]
Noninterest income:
Noninterest revenue	$ 1,579,000	$ 1,324,000	$ 4,489,000	$ 3,687,000
Credit and Debit Card [Member]
Noninterest income:
Noninterest revenue	$ 2,086,000	$ 1,947,000	$ 6,101,000	$ 5,545,000