Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest income
Loans, including fees	$ 33,251,000	$ 32,985,000
Securities, taxable	1,665,000	1,035,000
Securities, tax-exempt	600,000	597,000
Other interest-earning assets	366,000	168,000
Total interest income	35,882,000	34,785,000
Interest expense
Deposits	1,825,000	2,717,000
Short-term borrowings	50,000	36,000
Federal Home Loan Bank advances	1,864,000	2,027,000
Subordinated debentures and other borrowings	1,258,000	472,000
Total interest expense	4,997,000	5,252,000
Net interest income	30,885,000	29,533,000
Provision for credit losses	100,000	300,000
Net interest income after provision for credit losses	30,785,000	29,233,000
Noninterest income:
Mortgage banking income	3,281,000	8,800,000
Interest rate swap fees	1,351,000	653,000
Payroll processing	638,000	557,000
Earnings on bank owned life insurance	287,000	277,000
Other income	423,000	343,000
Total noninterest income	9,277,000	13,463,000
Noninterest expense
Salaries and benefits	15,510,000	15,086,000
Occupancy	2,104,000	2,014,000
Furniture and equipment depreciation, rent and maintenance	934,000	889,000
Data processing costs	2,973,000	2,617,000
Other expense	4,221,000	4,511,000
Total noninterest expenses	25,742,000	25,117,000
Income before federal income tax expense	14,320,000	17,579,000
Federal income tax expense	2,828,000	3,340,000
Net income	$ 11,492,000	$ 14,239,000
Basic earnings per share (in dollars per share)	$ 0.73	$ 0.87
Diluted earnings per share (in dollars per share)	0.73	0.87
Cash dividends per share (in dollars per share)	$ 0.31	$ 0.29
Average basic shares outstanding (in shares)	15,840,801	16,283,044
Average diluted shares outstanding (in shares)	15,841,037	16,283,490
Service Charges on Deposit and Sweep Accounts [Member]
Noninterest income:
Noninterest revenue	$ 1,416,000	$ 1,155,000
Credit and Debit Card [Member]
Noninterest income:
Noninterest revenue	$ 1,881,000	$ 1,678,000