Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest income
Loans, including fees	$ 36,003,000	$ 33,789,000	$ 69,254,000	$ 66,774,000
Securities, taxable	1,898,000	1,204,000	3,563,000	2,239,000
Securities, tax-exempt	631,000	598,000	1,231,000	1,195,000
Other interest-earning assets	1,018,000	183,000	1,384,000	351,000
Total interest income	39,550,000	35,774,000	75,432,000	70,559,000
Interest expense
Deposits	1,873,000	2,346,000	3,698,000	5,063,000
Short-term borrowings	49,000	40,000	99,000	76,000
Federal Home Loan Bank advances	1,911,000	2,050,000	3,774,000	4,077,000
Subordinated debt and other borrowings	1,391,000	467,000	2,650,000	939,000
Total interest expense	5,224,000	4,903,000	10,221,000	10,155,000
Net interest income	34,326,000	30,871,000	65,211,000	60,404,000
Provision for credit losses	500,000	(3,100,000)	600,000	(2,800,000)
Net interest income after provision for credit losses	33,826,000	33,971,000	64,611,000	63,204,000
Noninterest income:
Mortgage banking income	1,947,000	7,695,000	5,228,000	16,495,000
Interest rate swap fees	430,000	1,495,000	1,781,000	2,148,000
Payroll services income	464,000	405,000	1,102,000	962,000
Earnings on bank owned life insurance	785,000	297,000	1,072,000	574,000
Gain on sale of branch	0	1,058,000	0	1,058,000
Other income	486,000	477,000	910,000	821,000
Total noninterest income	7,741,000	14,556,000	17,018,000	28,019,000
Noninterest expense
Salaries and benefits	15,676,000	16,194,000	31,186,000	31,279,000
Occupancy	2,084,000	1,977,000	4,168,000	3,991,000
Furniture and equipment depreciation, rent and maintenance	935,000	902,000	1,869,000	1,791,000
Data processing costs	3,091,000	2,775,000	6,064,000	5,392,000
Charitable foundation contribution	500,000	0	506,000	0
Other expense	4,656,000	4,344,000	8,891,000	8,856,000
Total noninterest expenses	26,942,000	26,192,000	52,684,000	51,309,000
Income before federal income tax expense	14,625,000	22,335,000	28,945,000	39,914,000
Federal income tax expense	2,888,000	4,244,000	5,716,000	7,583,000
Net income	$ 11,737,000	$ 18,091,000	$ 23,229,000	$ 32,331,000
Basic earnings per share (in dollars per share)	$ 0.74	$ 1.12	$ 1.47	$ 2.00
Diluted earnings per share (in dollars per share)	0.74	1.12	1.47	2.00
Cash dividends per share (in dollars per share)	$ 0.31	$ 0.29	$ 0.62	$ 0.58
Average basic shares outstanding (in shares)	15,848,681	16,116,070	15,844,763	16,199,096
Average diluted shares outstanding (in shares)	15,848,681	16,116,666	15,844,763	16,199,620
Service Charges on Deposit and Sweep Accounts [Member]
Noninterest income:
Noninterest revenue	$ 1,495,000	$ 1,209,000	$ 2,910,000	$ 2,363,000
Credit and Debit Card [Member]
Noninterest income:
Noninterest revenue	$ 2,134,000	$ 1,920,000	$ 4,015,000	$ 3,598,000