LOANS AND ALLOWANCE (Schedule of calculation for allowance for credit losses) (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021		Mar. 31, 2021	Dec. 31, 2020
Allowances for loan losses	$ 29,379,000	$ 29,105,000	[1]	$ 34,893,000	$ 36,345,000
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied
Allowances for loan losses	4,173,000	4,562,000		4,144,000	6,699,000
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Non-owner Occupied
Allowances for loan losses	8,913,000	9,028,000		13,804,000	11,426,000
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Allowances for loan losses	1,029,000	998,000		3,066,000	1,815,000
Commercial Real Estate Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Allowances for loan losses	49,000	56,000		111,000	104,000
Residential Portfolio Segment [Member] | 1-4 Family Residential
Allowances for loan losses	3,888,000	3,588,000		6,770,000	9,579,000
Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Allowances for loan losses	376,000	437,000		825,000	901,000
Commercial Portfolio Segment [Member]
Allowances for loan losses	5,466,000	4,088,000
Commercial Portfolio Segment [Member] | Loans And Leases Receivable Secured By Farmland [Member]
Allowances for loan losses	49,000	56,000
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Allowances for loan losses	1,029,000	998,000
Commercial Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Allowances for loan losses	2,289,000	3,280,000		1,246,000	1,412,000
Commercial Portfolio Segment [Member] | Commercial Mortgage Loan
Allowances for loan losses	5,466,000	4,088,000		2,192,000	1,498,000
Consumer Portfolio Segment [Member]
Allowances for loan losses	1,025,000	787,000		369,000	517,000
Consumer Portfolio Segment [Member] | Consumer Borrower [Member]
Allowances for loan losses	1,025,000	787,000
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowances for loan losses	2,171,000	2,281,000
Receivables Acquired with Deteriorated Credit Quality [Member] | Consumer Portfolio Segment [Member]
Allowances for loan losses	2,171,000	2,281,000		$ 2,366,000	$ 2,394,000
Paycheck Protection Program Loans [Member]
Financing receivable, allowance for credit loss	0
Modeled Expected Credit Losses [Member]
Allowances for loan losses	21,745,000	20,960,000
Modeled Expected Credit Losses [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied
Allowances for loan losses	3,875,000	4,281,000
Modeled Expected Credit Losses [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Non-owner Occupied
Allowances for loan losses	7,845,000	8,020,000
Modeled Expected Credit Losses [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential
Allowances for loan losses	3,228,000	3,012,000
Modeled Expected Credit Losses [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Allowances for loan losses	275,000	273,000
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member]
Allowances for loan losses	3,083,000	2,154,000
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member] | Loans And Leases Receivable Secured By Farmland [Member]
Allowances for loan losses	9,000	9,000
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Allowances for loan losses	556,000	540,000
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Allowances for loan losses	1,849,000	1,885,000
Modeled Expected Credit Losses [Member] | Consumer Portfolio Segment [Member] | Consumer Borrower [Member]
Allowances for loan losses	1,025,000	786,000
Q Factor And Other Qualitative Adjustments [Member]
Allowances for loan losses	3,856,000	5,205,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied
Allowances for loan losses	298,000	281,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Non-owner Occupied
Allowances for loan losses	1,068,000	1,008,000
Q Factor And Other Qualitative Adjustments [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential
Allowances for loan losses	660,000	576,000
Q Factor And Other Qualitative Adjustments [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Allowances for loan losses	101,000	164,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Portfolio Segment [Member]
Allowances for loan losses	776,000	1,276,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Portfolio Segment [Member] | Loans And Leases Receivable Secured By Farmland [Member]
Allowances for loan losses	40,000	47,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Allowances for loan losses	473,000	458,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Allowances for loan losses	440,000	1,395,000
Specific Allocation [Member]
Allowances for loan losses	3,778,000	2,940,000
Specific Allocation [Member] | Commercial Portfolio Segment [Member]
Allowances for loan losses	1,607,000	658,000
Specific Allocation [Member] | Consumer Portfolio Segment [Member] | Consumer Borrower [Member]
Allowances for loan losses		1,000
Specific Allocation [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowances for loan losses	$ 2,171,000	$ 2,281,000

[1] Derived from audited consolidated financial statements