Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest income
Loans, including fees	$ 32,985,000	$ 33,442,000
Securities, taxable	1,035,000	3,441,000
Securities, tax-exempt	597,000	576,000
Other interest-earning assets	168,000	475,000
Total interest income	34,785,000	37,934,000
Interest expense
Deposits	2,717,000	4,641,000
Short-term borrowings	36,000	40,000
Federal Home Loan Bank advances	2,027,000	2,212,000
Subordinated debentures and other borrowings	472,000	724,000
Total interest expense	5,252,000	7,617,000
Net interest income	29,533,000	30,317,000
Provision for loan losses	300,000	750,000
Net interest income after provision for loan losses	29,233,000	29,567,000
Noninterest income:
Mortgage banking income	8,800,000	2,627,000
Interest rate swap fees	653,000	0
Payroll processing	557,000	577,000
Earnings on bank owned life insurance	277,000	336,000
Other income	343,000	427,000
Total noninterest income	13,463,000	6,550,000
Noninterest expense
Salaries and benefits	15,086,000	13,528,000
Occupancy	2,014,000	2,059,000
Furniture and equipment depreciation, rent and maintenance	889,000	778,000
Data processing costs	2,617,000	2,483,000
Other expense	4,511,000	4,092,000
Total noninterest expenses	25,117,000	22,940,000
Income before federal income tax expense	17,579,000	13,177,000
Federal income tax expense	3,340,000	2,504,000
Net income	$ 14,239,000	$ 10,673,000
Basic earnings per share (in dollars per share)	$ 0.87	$ 0.65
Diluted earnings per share (in dollars per share)	0.87	0.65
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)	$ 0.29	$ 0.28
Average basic shares outstanding (in shares)	16,283,044	16,350,281
Average diluted shares outstanding (in shares)	16,283,490	16,351,559
Deposit Account [Member]
Noninterest income:
Service charges on deposit and sweep accounts	$ 1,155,000	$ 1,222,000
Credit and Debit Card [Member]
Noninterest income:
Service charges on deposit and sweep accounts	$ 1,678,000	$ 1,361,000