LOANS AND ALLOWANCE FOR CREDIT LOSSES (Schedule of calculation for allowance for credit losses) (Details) - USD ($)	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021		Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Financing receivable, allowance for credit loss	$ 30,209,000	$ 29,379,000	$ 29,105,000	[1]	$ 31,265,000	$ 34,893,000	$ 36,345,000
Allowances for loan losses	30,209,000	29,379,000	29,105,000	[1]	31,265,000	34,893,000	36,345,000
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied
Financing receivable, allowance for credit loss	4,301,000	4,173,000	4,562,000		4,769,000	4,144,000	6,699,000
Allowances for loan losses	4,301,000	4,173,000	4,562,000		4,769,000	4,144,000	6,699,000
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Non-owner Occupied
Financing receivable, allowance for credit loss	7,917,000	8,913,000	9,028,000		11,235,000	13,804,000	11,426,000
Allowances for loan losses	7,917,000	8,913,000	9,028,000		11,235,000	13,804,000	11,426,000
Commercial Real Estate Portfolio Segment [Member] | Loans And Leases Receivable Secured By Farmland [Member]
Financing receivable, allowance for credit loss	49,000	49,000	56,000		80,000	111,000
Allowances for loan losses	49,000	49,000	56,000		80,000	111,000
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Financing receivable, allowance for credit loss	1,024,000		998,000		2,691,000		1,815,000
Allowances for loan losses	1,024,000		998,000		2,691,000		1,815,000
Commercial Real Estate Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Financing receivable, allowance for credit loss	49,000		56,000		80,000		104,000
Allowances for loan losses	49,000		56,000		80,000		104,000
Residential Portfolio Segment [Member] | 1-4 Family Residential
Financing receivable, allowance for credit loss	4,272,000	3,888,000	3,588,000		4,451,000	6,770,000	9,579,000
Allowances for loan losses	4,272,000	3,888,000	3,588,000		4,451,000	6,770,000	9,579,000
Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Financing receivable, allowance for credit loss	363,000	376,000	437,000		601,000	825,000	901,000
Allowances for loan losses	363,000	376,000	437,000		601,000	825,000	901,000
Commercial Portfolio Segment [Member]
Financing receivable, allowance for credit loss	6,428,000		4,088,000
Allowances for loan losses	6,428,000		4,088,000
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Financing receivable, allowance for credit loss	1,024,000	1,029,000	998,000		2,691,000	3,066,000
Allowances for loan losses	1,024,000	1,029,000	998,000		2,691,000	3,066,000
Commercial Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Financing receivable, allowance for credit loss	2,160,000	2,289,000	3,280,000		1,090,000	1,246,000	1,412,000
Allowances for loan losses	2,160,000	2,289,000	3,280,000		1,090,000	1,246,000	1,412,000
Commercial Portfolio Segment [Member] | Commercial Mortgage Loan
Financing receivable, allowance for credit loss	6,428,000	5,466,000	4,088,000		3,582,000	2,192,000	1,498,000
Allowances for loan losses	6,428,000	5,466,000	4,088,000		3,582,000	2,192,000	1,498,000
Consumer Portfolio Segment [Member]
Financing receivable, allowance for credit loss	1,569,000	1,025,000	787,000		428,000	369,000	517,000
Allowances for loan losses	1,569,000	1,025,000	787,000		428,000	369,000	517,000
Consumer Portfolio Segment [Member] | Consumer Borrower [Member]
Financing receivable, allowance for credit loss	1,569,000		787,000
Allowances for loan losses	1,569,000		787,000
Receivables Acquired with Deteriorated Credit Quality [Member]
Financing receivable, allowance for credit loss	2,126,000	2,171,000	2,281,000		2,338,000	2,366,000	2,394,000
Allowances for loan losses	2,126,000	$ 2,171,000	2,281,000		$ 2,338,000	$ 2,366,000	$ 2,394,000
Paycheck Protection Program Loans [Member]
Financing receivable, allowance for credit loss	0
Allowances for loan losses	0
Modeled Expected Credit Losses [Member]
Financing receivable, allowance for credit loss	22,605,000		20,960,000
Allowances for loan losses	22,605,000		20,960,000
Modeled Expected Credit Losses [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied
Financing receivable, allowance for credit loss	4,014,000		4,281,000
Allowances for loan losses	4,014,000		4,281,000
Modeled Expected Credit Losses [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Non-owner Occupied
Financing receivable, allowance for credit loss	7,411,000		8,020,000
Allowances for loan losses	7,411,000		8,020,000
Modeled Expected Credit Losses [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans And Leases Receivable Secured By Farmland [Member]
Financing receivable, allowance for credit loss	10,000		9,000
Allowances for loan losses	10,000		9,000
Modeled Expected Credit Losses [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential
Financing receivable, allowance for credit loss	3,431,000		3,012,000
Allowances for loan losses	3,431,000		3,012,000
Modeled Expected Credit Losses [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Financing receivable, allowance for credit loss	272,000		273,000
Allowances for loan losses	272,000		273,000
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member]
Financing receivable, allowance for credit loss	3,592,000		2,154,000
Allowances for loan losses	3,592,000		2,154,000
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Financing receivable, allowance for credit loss	610,000		540,000
Allowances for loan losses	610,000		540,000
Modeled Expected Credit Losses [Member] | Commercial Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Financing receivable, allowance for credit loss	1,715,000		1,885,000
Allowances for loan losses	1,715,000		1,885,000
Modeled Expected Credit Losses [Member] | Consumer Portfolio Segment [Member] | Consumer Borrower [Member]
Financing receivable, allowance for credit loss	1,550,000		786,000
Allowances for loan losses	1,550,000		786,000
Q Factor And Other Qualitative Adjustments [Member]
Financing receivable, allowance for credit loss	3,432,000		5,205,000
Allowances for loan losses	3,432,000		5,205,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied
Financing receivable, allowance for credit loss	287,000		281,000
Allowances for loan losses	287,000		281,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Non-owner Occupied
Financing receivable, allowance for credit loss	506,000		1,008,000
Allowances for loan losses	506,000		1,008,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Real Estate Portfolio Segment [Member] | Loans And Leases Receivable Secured By Farmland [Member]
Financing receivable, allowance for credit loss	39,000		47,000
Allowances for loan losses	39,000		47,000
Q Factor And Other Qualitative Adjustments [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential
Financing receivable, allowance for credit loss	841,000		576,000
Allowances for loan losses	841,000		576,000
Q Factor And Other Qualitative Adjustments [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Financing receivable, allowance for credit loss	91,000		164,000
Allowances for loan losses	91,000		164,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Portfolio Segment [Member]
Financing receivable, allowance for credit loss	809,000		1,276,000
Allowances for loan losses	809,000		1,276,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Financing receivable, allowance for credit loss	414,000		458,000
Allowances for loan losses	414,000		458,000
Q Factor And Other Qualitative Adjustments [Member] | Commercial Portfolio Segment [Member] | Loans And Leases Receivable Multi Family Residential [Member]
Financing receivable, allowance for credit loss	445,000		1,395,000
Allowances for loan losses	445,000		1,395,000
Specific Allocation [Member]
Financing receivable, allowance for credit loss	4,172,000		2,940,000
Allowances for loan losses	4,172,000		2,940,000
Specific Allocation [Member] | Commercial Portfolio Segment [Member]
Financing receivable, allowance for credit loss	2,027,000		658,000
Allowances for loan losses	2,027,000		658,000
Specific Allocation [Member] | Consumer Portfolio Segment [Member] | Consumer Borrower [Member]
Financing receivable, allowance for credit loss	19,000		1,000
Allowances for loan losses	19,000		1,000
Specific Allocation [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing receivable, allowance for credit loss	2,126,000		2,281,000
Allowances for loan losses	$ 2,126,000		$ 2,281,000

[1] Derived from audited consolidated financial statements