Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
Net income	$ 5,877,000	$ 6,820,000	$ 6,135,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,086,000	1,256,000	1,255,000
Provision for loan losses	1,773,000	346,000	507,000
Loss on disposal of premises and equipment, net	211,000
(Gain) loss on interest rate swaps, net	(5,000)	4,000	3,000
Deferred tax (benefit) expense	(487,000)	124,000	221,000
Gains on sales/calls of securities available for sale	(992,000)	(79,000)	(838,000)
Amortization of security premiums, net	508,000	450,000	357,000
Amortization of unearned compensation, net of forfeiture	328,000	250,000	214,000
Issuance of vested restricted stock	175,000	90,000	90,000
Bank-owned life insurance income	(360,000)	(366,000)	(361,000)
Originations of mortgage loans held for sale	(4,898,000)	(5,379,000)	(2,042,000)
Proceeds from mortgage loans held for sale	4,856,000	5,201,000	2,079,000
Gain on mortgage loans held for sale	(86,000)	(69,000)	(37,000)
Changes in assets and liabilities:
(Increase) decrease in other assets	745,000	(4,731,000)	(1,065,000)
Increase (decrease) in other liabilities	(822,000)	4,641,000	812,000
Net cash provided by operating activities	7,909,000	8,558,000	7,330,000
Cash Flows from Investing Activities
Proceeds from maturities, calls and principal payments of securities available for sale	16,166,000	8,196,000	11,707,000
Proceeds from sales of securities available for sale	18,762,000	13,871,000	0
Purchase of securities available for sale	(35,801,000)	(27,626,000)	(12,372,000)
Purchase of premises and equipment	(334,000)	(558,000)	(839,000)
(Purchase) redemption of restricted investments, net	181,000	224,000	(694,000)
Loan originations, net	(66,612,000)	(1,009,000)	(47,036,000)
Net cash used in investing activities	(67,638,000)	(6,902,000)	(49,234,000)
Cash Flows from Financing Activities
Increase (decrease) in noninterest-bearing checking, interest-bearing checking, savings and money market accounts	144,697,000	(5,396,000)	55,318,000
Increase (decrease) in time deposits	(733,000)	(8,087,000)	10,297,000
Increase (decrease) in Federal Home Loan Bank advances	(4,089,000)	(7,085,000)	15,920,000
Cash dividends paid on common stock	(1,897,000)	(1,836,000)	(1,813,000)
Repurchase of common stock	(24,000)	(21,000)	(8,000)
Net cash provided by (used in) financing activities	137,954,000	(22,425,000)	79,714,000
Increase (decrease) in cash and cash equivalents	78,225,000	(20,769,000)	37,810,000
Cash and Cash Equivalents
Beginning	46,341,000	67,110,000	29,300,000
Ending	124,566,000	46,341,000	67,110,000
Cash payments for:
Interest	2,651,000	4,603,000	3,061,000
Income taxes	1,255,000	970,000	330,000
Supplemental Disclosures of Noncash Investing Activities
Unrealized gain (loss) on securities available for sale, net of tax	1,349,000	2,142,000	(823,000)
Unrealized gain (loss) on interest rate swaps, net of tax	(271,000)	(250,000)	135,000
Changes in Supplemental Executive Retirement Plans, net of tax	$ (124,000)	$ 17,000	$ 15,000