Consolidated Statements of Income - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Interest and dividend income:
Loans, including fees	$ 19,249,000	$ 21,060,000
Taxable securities	4,813,000	4,115,000
Tax-exempt securities	142,000	147,000
Other interest income	79,000	292,000
Total interest income	24,283,000	25,614,000
Interest expense:
Deposits	2,946,000	3,706,000
Short-term borrowings and repurchase agreements	68,000	61,000
FRB advances	61,000	0
Long-term debt	946,000	899,000
Other interest bearing liabilities	16,000	42,000
Total interest expense	4,037,000	4,708,000
Net interest income	20,246,000	20,906,000
Provision for loan losses	721,000	(573,000)
Net interest income after provision for loan losses	19,525,000	21,479,000
Non-interest income:
Earnings on bank-owned life insurance and annuities	263,000	289,000
Gain (loss) on sales and calls of securities	855,000	(43,000)
Change in value of equity securities	(53,000)	26,000
Other non-interest income	348,000	344,000
Total non-interest income	5,320,000	4,749,000
Non-interest expense:
Employee compensation expense	7,844,000	8,257,000
Employee benefits	2,331,000	3,594,000
Occupancy	1,175,000	1,296,000
Equipment	932,000	881,000
Data processing expense	2,294,000	2,114,000
Professional fees	715,000	961,000
Taxes, other than income	502,000	567,000
FDIC Insurance premiums	232,000	108,000
Gain on sales of other real estate owned	0	(208,000)
Amortization of intangible assets	77,000	87,000
Amortization of investment in low income housing partnerships	799,000	792,000
Long-term debt prepayment penalty	524,000	0
Other non-interest expense	1,868,000	1,958,000
Total non-interest expense	19,293,000	20,407,000
Income before income taxes	5,552,000	5,821,000
Income tax provision (benefit)	(50,000)	(14,000)
Net income	$ 5,602,000	$ 5,835,000
Earnings per share
Basic	$ 1.10	$ 1.14
Diluted	$ 1.10	$ 1.14
Customer Service Fees [Member]
Non-interest income:
Non-interest income	$ 1,376,000	$ 1,717,000
Debit Card fee Income [Member]
Non-interest income:
Non-interest income	1,465,000	1,349,000
Trust Fees [Member]
Non-interest income:
Non-interest income	408,000	394,000
Commissions from Sales of Non-Deposit Products [Member]
Non-interest income:
Non-interest income	306,000	272,000
Fees Derived From Loan Activity [Member]
Non-interest income:
Non-interest income	298,000	333,000
Mortgage Banking Income [Member]
Non-interest income:
Non-interest income	$ 54,000	$ 68,000