LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Summary of Impaired Loan Balances and Associated Allowance by Portfolio Segment) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2021
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	$ 2,749
Unpaid Principal Balance - with an allowance recorded	2,749
Related Allowance	462
Average Recorded Investment - with an allowance recorded	2,708	$ 2,752
Interest Income Recognized - with an allowance recorded	25	50
Recorded Investment - without allowance recorded	1,414
Unpaid Principal Balance - without allowance recorded	1,917
Impaired Financing Receivable With No Related Allowance Related Allowance	0
Average Recorded Investment - without allowance recorded	1,551	1,580
Interest Income Recognized - without allowance recorded	3	11
Impaired Financing Receivable, Recorded Investment	4,163
Impaired financing receivable, unpaid principal balance	4,666
Impaired Financing Receivable, Average Recorded Investment	4,259	4,332
Impaired Financing Receivable, Interest Income, Accrual Method	28	61
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	2,304
Unpaid Principal Balance - with an allowance recorded	2,304
Related Allowance	338
Average Recorded Investment - with an allowance recorded	2,262	2,306
Interest Income Recognized - with an allowance recorded	22	46
Recorded Investment - without allowance recorded	849
Unpaid Principal Balance - without allowance recorded	972
Impaired Financing Receivable With No Related Allowance Related Allowance	0
Average Recorded Investment - without allowance recorded	957	968
Interest Income Recognized - without allowance recorded	(1)	2
Commercial Real Estate(1)
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	127
Unpaid Principal Balance - with an allowance recorded	127
Related Allowance	35
Average Recorded Investment - with an allowance recorded	128	128
Interest Income Recognized - with an allowance recorded	3	4
Recorded Investment - without allowance recorded	334
Unpaid Principal Balance - without allowance recorded	514
Impaired Financing Receivable With No Related Allowance Related Allowance	0
Average Recorded Investment - without allowance recorded	303	293
Interest Income Recognized - without allowance recorded	3	6
Commercial
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0
Unpaid Principal Balance - with an allowance recorded	0
Related Allowance	0
Recorded Investment - without allowance recorded	179
Unpaid Principal Balance - without allowance recorded	242
Impaired Financing Receivable With No Related Allowance Related Allowance	0
Average Recorded Investment - without allowance recorded	239	266
Interest Income Recognized - without allowance recorded	1	3
SBA PPP Portfolio Segment
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0
Unpaid Principal Balance - with an allowance recorded	0
Related Allowance	0
Recorded Investment - without allowance recorded	0
Unpaid Principal Balance - without allowance recorded	0
Impaired Financing Receivable With No Related Allowance Related Allowance	0
Home Equity
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	318
Unpaid Principal Balance - with an allowance recorded	318
Related Allowance	89
Average Recorded Investment - with an allowance recorded	318	318
Recorded Investment - without allowance recorded	52
Unpaid Principal Balance - without allowance recorded	189
Impaired Financing Receivable With No Related Allowance Related Allowance	0
Average Recorded Investment - without allowance recorded	52	$ 53
Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment - with an allowance recorded	0
Unpaid Principal Balance - with an allowance recorded	0
Related Allowance	0
Recorded Investment - without allowance recorded	0
Unpaid Principal Balance - without allowance recorded	0
Impaired Financing Receivable With No Related Allowance Related Allowance	$ 0

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