LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Financing Receivable, Nonaccrual) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual, No Allowance	$ 856	$ 496
Financing Receivable, Nonaccrual, With Allowance	6,724	7,100
Financing Receivable, Nonaccrual	7,580	7,596
Real Estate
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	336	248
General Business Assets
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	657	689
Collateral Pledged [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	993	937
Commercial real estate - non owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual, No Allowance	15	15
Financing Receivable, Nonaccrual, With Allowance	155	351
Financing Receivable, Nonaccrual	170	366
Commercial real estate - owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual, No Allowance	47	47
Financing Receivable, Nonaccrual, With Allowance	92	99
Financing Receivable, Nonaccrual	139	146
Commercial Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual, No Allowance	56	58
Financing Receivable, Nonaccrual, With Allowance	1,681	1,549
Financing Receivable, Nonaccrual	1,737	1,607
Commercial Portfolio Segment [Member] | Real Estate
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	0	0
Commercial Portfolio Segment [Member] | General Business Assets
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	657	689
Commercial Portfolio Segment [Member] | Collateral Pledged [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	657	689
Residential Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual, No Allowance	445	341
Financing Receivable, Nonaccrual, With Allowance	3,192	3,136
Financing Receivable, Nonaccrual	3,637	3,477
Residential Portfolio Segment [Member] | Real Estate
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	336	248
Residential Portfolio Segment [Member] | General Business Assets
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	0	0
Residential Portfolio Segment [Member] | Collateral Pledged [Member]
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual	336	248
Home Equity
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual, No Allowance	293	35
Financing Receivable, Nonaccrual, With Allowance	1,575	1,961
Financing Receivable, Nonaccrual	1,868	1,996
Consumer
Financing Receivable, Nonaccrual [Line Items]
Financing Receivable, Nonaccrual, No Allowance	0	0
Financing Receivable, Nonaccrual, With Allowance	29	4
Financing Receivable, Nonaccrual	$ 29	$ 4