Consolidated Statements of Net Income - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Interest and dividend income
Loans receivable, including fees	$ 34,029,000	$ 32,507,000
Securities:
Taxable	2,070,000	2,258,000
Exempt from federal income tax	486,000	395,000
Federal bank stocks	371,000	419,000
Interest earning deposits with banks	191,000	566,000
Total interest and dividend income	37,147,000	36,145,000
Interest expense
Deposits	7,165,000	7,087,000
Short-term borrowed funds	131,000	183,000
Long-term borrowed funds	766,000	813,000
Total interest expense	8,062,000	8,083,000
Net interest income	29,085,000	28,062,000
Provision for loan losses	3,247,000	715,000
Net interest income after provision for loan losses	25,838,000	27,347,000
Noninterest income
Fees and service charges	1,498,000	2,157,000
Net gain on sales of available for sale securities	687,000	78,000
Net gain on sales of loans	241,000	114,000
Earnings on bank-owned life insurance	401,000	566,000
Other	1,536,000	1,476,000
Total noninterest income	4,363,000	4,391,000
Noninterest expense
Compensation and employee benefits	11,148,000	11,738,000
Premises and equipment	3,300,000	3,373,000
Intangible asset amortization	164,000	176,000
Professional fees	841,000	928,000
Federal deposit insurance	538,000	273,000
Other	6,027,000	5,634,000
Total noninterest expense	22,018,000	22,122,000
Income before provision for income taxes	8,183,000	9,616,000
Provision for income taxes	1,435,000	1,662,000
Net income	6,748,000	7,954,000
Preferred stock dividends	186,000	182,000
Net income available to common stockholders	$ 6,562,000	$ 7,772,000
Earnings per common share
Basic (in dollars per share)	$ 2.42	$ 2.88
Diluted (in dollars per share)	$ 2.41	$ 2.86