Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Activities
Net income	$ 9,483,000	$ 15,921,000	$ 16,492,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,714,000	1,724,000	1,828,000
(Reversal of provision) provision for credit losses	(844,000)	(850,000)	458,000
Net loss (gain) on sales of investment debt and equity securities	2,077,000	(266,000)	(1,806,000)
Net unrealized (gain) loss on equity securities	(250,000)	1,026,000	(926,000)
Net gain on sale of loans	(16,000)	(6,000)	(595,000)
Proceeds from sales of residential mortgages held-for-sale	989,000	304,000	16,773,000
Origination of residential mortgages held-for-sale	(1,522,000)	(298,000)	(4,892,000)
Income on bank-owned life insurance	(320,000)	(361,000)	(497,000)
Stock-based compensation expense	185,000	85,000	102,000
Deferred income tax (benefit) provision	52,000	(57,000)	113,000
Net decrease in income taxes payable	(2,094,000)	(534,000)	(78,000)
Net (increase) decrease in accrued interest receivable	(1,063,000)	(934,000)	721,000
Fair value remeasurements on interest rate swap	(57,000)
Amortization of mortgage servicing rights and change in valuation allowance	61,000	71,000	118,000
Net amortization of premiums and discounts on investment securities	1,665,000	2,222,000	3,152,000
Net increase (decrease) in accrued interest payable	4,827,000	256,000	(139,000)
Operating lease payments	(626,000)	(620,000)	(631,000)
Increase in other assets	(91,000)	(298,000)	(507,000)
Increase (decrease) in other liabilities	287,000	(550,000)	703,000
Net cash provided by operating activities	14,457,000	16,835,000	30,389,000
Investing Activities
Proceeds from payments, maturities and calls of investment debt securities available-for-sale	50,042,000	72,965,000	113,911,000
Proceeds from the sale of investment securities available-for-sale	33,213,000	7,551,000	282,000
Purchases of investment securities available-for-sale	(14,381,000)	(35,001,000)	(385,926,000)
Proceeds from the sale of equity securities	8,556,000	1,594,000	7,768,000
Purchases of equity securities	(2,179,000)	(1,860,000)	(4,615,000)
Proceeds from redemption of investment in restricted bank stock	7,629,000	5,155,000	573,000
Purchase of restricted bank stock	(5,166,000)	(9,019,000)	(861,000)
Net increase in loans	(53,910,000)	(112,718,000)	(11,244,000)
Net purchases of premises and equipment	(765,000)	(552,000)	(3,175,000)
Redemption of Bank Owned Life Insurance investment		239,000	797,000
Net cash provided (used) in investing activities	23,039,000	(71,646,000)	(282,490,000)
Financing Activities
Net (decrease) increase in non-interest-bearing deposits	(46,751,000)	(11,157,000)	38,422,000
Net increase (decrease) in interest-bearing deposits	117,095,000	(20,219,000)	183,256,000
Net (decrease) increase in short-term borrowings	(67,233,000)	92,851,000	9,638,000
Issuance of long-term debt	20,000,000
Repayment of long-term debt	(10,000,000)
Treasury stock purchase		(75,000)	(1,356,000)
Cash dividends paid, net of reinvestment	(4,671,000)	(4,498,000)	(4,375,000)
Proceeds from issuance of common stock	822,000	418,000	575,000
Net cash provided by financing activities	9,262,000	57,320,000	226,160,000
Increase (decrease) in cash and cash equivalents	46,758,000	2,509,000	(25,941,000)
Cash and cash equivalents at beginning of year	15,899,000	13,390,000	39,331,000
Cash and cash equivalents at end of period	62,657,000	15,899,000	13,390,000
Supplemental Cash Flow Disclosures
Interest paid	24,100,000	7,668,000	4,782,000
Income taxes paid, net of refunds received	4,286,000	4,257,000	3,925,000
Non-cash transactions:
Cumulative change in accounting principal	857,000
Trade-date settlements for matured securities	500,000
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 369,000	$ 43,000	$ 698,000