Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net income	$ 5,602,000	$ 5,835,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	721,000	(573,000)
Depreciation	806,000	801,000
Net amortization of securities premiums	1,459,000	817,000
Net amortization of loan origination fees	301,000	96,000
Deferred net loan origination costs	(684,000)	(437,000)
Amortization of intangibles	77,000	87,000
Amortization of investment in low income housing partnerships	799,000	792,000
Net amortization of purchase fair value adjustments	(106,000)	(187,000)
Net realized (gain) loss on sales and calls of available for sale securities	(855,000)	43,000
Change in value of equity securities	53,000	(26,000)
Net gain on sales of other real estate owned	0	(208,000)
Earnings on bank owned life insurance and annuities	(263,000)	(289,000)
Deferred income tax benefit	(155,000)	(782,000)
Stock-based compensation expense	128,000	113,000
Proceeds from mortgage loans sold to others	76,000	88,000
Mortgage banking income	(54,000)	(68,000)
(Increase) decrease in accrued interest receivable and other assets	(776,000)	1,872,000
(Decrease) increase in accrued interest payable and other liabilities	(354,000)	1,967,000
Net cash provided by operating activities	6,775,000	9,941,000
Investing activities:
Purchases of: Securities available for sale	(268,399,000)	(125,422,000)
Purchases of: FHLB stock	0	(1,001,000)
Purchases of: Premises and equipment	(371,000)	(1,308,000)
Purchases of: Bank owned life insurance and annuities	(39,000)	(39,000)
Proceeds from: Sales of securities available for sale	97,389,000	21,777,000
Proceeds from: Maturities of and principal repayments on securities available for sale	98,539,000	38,056,000
Proceeds from: Redemption of FHLB stock	19,000	0
Proceeds from: Sale of other real estate owned	0	952,000
Proceeds from: Sale of fixed assets	0	7,000
Proceeds from: Sale of other assets	34,000	13,000
Investment in low income housing partnerships	0	(151,000)
Net decrease in interest bearing time deposits with banks	1,475,000	1,080,000
Net (increase) decrease in loans	(21,195,000)	18,068,000
Net cash used in investing activities	(92,548,000)	(47,968,000)
Financing activities:
Net increase in deposits	90,925,000	10,210,000
Net increase (decrease) in short-term borrowings and securities sold under agreements to repurchase	11,621,000	(1,382,000)
Issuance of FRB advances	31,298,000	0
Issuance of long-term debt	0	45,000,000
Repayments of FRB advances	(3,343,000)	0
Repayment of long-term debt	(10,000,000)	(15,000,000)
Cash dividends	(4,465,000)	(4,489,000)
Purchase of treasury stock	(1,452,000)	(428,000)
Treasury stock issued for employee stock plans	70,000	400,000
Net cash provided by financing activities	114,654,000	34,311,000
Net increase (decrease) in cash and cash equivalents	28,881,000	(3,716,000)
Cash and cash equivalents at beginning of year	12,740,000	16,456,000
Cash and cash equivalents at end of period	41,621,000	12,740,000
Supplemental information:
Interest paid	4,062,000	4,524,000
Income tax paid	325,000	243,000
Supplemental schedule of noncash investing and financing activities:
Transfer of loans to repossessed vehicles	29,000	7,000
Right-of-Use assets obtained in exchange for lease obligations	$ 0	$ 556,000