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LOANS AND ALLOWANCE FOR LOAN LOSSES (Summary of Impaired Loan Balances and Associated Allowance by Portfolio Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | $ 2,749 |  | $ 4,706 |  | $ 2,749 | $ 4,706 | $ 2,841
Unpaid Principal Balance - with an allowance recorded | 2,749 |  | 4,706 |  | 2,749 | 4,706 | 2,841
Related Allowance | 462 |  | 1,183 |  | 462 | 1,183 | 463
Average Recorded Investment - with an allowance recorded | 2,708 |  | 4,559 |  | 2,752 | 4,532 | 3,933
Interest Income Recognized - with an allowance recorded | 25 | [1] | 31 | [1] | 50 | 62 | 121
Recorded Investment - without allowance recorded | 1,414 |  | 1,737 |  | 1,414 | 1,737 | 1,637
Unpaid Principal Balance - without allowance recorded | 1,917 |  | 2,222 |  | 1,917 | 2,222 | 2,426
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 |  | 0 |  | 0 | 0 |
Average Recorded Investment - without allowance recorded | 1,551 |  | 1,794 |  | 1,580 | 2,013 | 1,993
Interest Income Recognized - without allowance recorded | 3 | [1] | 13 | [1] | 11 | 28 | 41
Impaired Financing Receivable, Recorded Investment | 4,163 |  | 6,443 |  | 4,163 | 6,443 | 4,478
Impaired financing receivable, unpaid principal balance | 4,666 |  | 6,928 |  | 4,666 | 6,928 | 5,267
Impaired Financing Receivable, Average Recorded Investment | 4,259 |  | 6,353 |  | 4,332 | 6,545 | 5,926
Impaired Financing Receivable, Interest Income, Accrual Method | 28 | [1] | 44 | [1] | 61 | 90 | 162
Residential Real Estate |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | 2,304 |  | 3,286 |  | 2,304 | 3,286 | 2,395
Unpaid Principal Balance - with an allowance recorded | 2,304 |  | 3,286 |  | 2,304 | 3,286 | 2,395
Related Allowance | 338 |  | 524 |  | 338 | 524 | 364
Average Recorded Investment - with an allowance recorded | 2,262 |  | 3,370 |  | 2,306 | 3,404 | 2,989
Interest Income Recognized - with an allowance recorded | 22 | [1] | 26 | [1] | 46 | 56 | 110
Recorded Investment - without allowance recorded | 849 |  | 1,186 |  | 849 | 1,186 | 989
Unpaid Principal Balance - without allowance recorded | 972 |  | 1,310 |  | 972 | 1,310 | 1,116
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 |  | 0 |  | 0 | 0 |
Average Recorded Investment - without allowance recorded | 957 |  | 1,234 |  | 968 | 1,253 | 1,258
Interest Income Recognized - without allowance recorded | (1) | [1] | 7 | [1] | 2 | 17 | 21
Commercial Real Estate |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | 127 |  | 131 |  | 127 | 131 | 128
Unpaid Principal Balance - with an allowance recorded | 127 |  | 131 |  | 127 | 131 | 128
Related Allowance | 35 |  | 27 |  | 35 | 27 | 30
Average Recorded Investment - with an allowance recorded | 128 |  | 131 |  | 128 | 131 | 130
Interest Income Recognized - with an allowance recorded | 3 | [1] | 5 | [1] | 4 | 6 | 11
Recorded Investment - without allowance recorded | 334 |  | 278 |  | 334 | 278 | 274
Unpaid Principal Balance - without allowance recorded | 514 |  | 437 |  | 514 | 437 | 433
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 |  | 0 |  | 0 | 0 |
Average Recorded Investment - without allowance recorded | 303 |  | 278 |  | 293 | 452 | 381
Interest Income Recognized - without allowance recorded | 3 | [1] | 4 | [1] | 6 | 7 | 13
Commercial |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | 0 |  | 461 |  | 0 | 461 | 0
Unpaid Principal Balance - with an allowance recorded | 0 |  | 461 |  | 0 | 461 | 0
Related Allowance | 0 |  | 322 |  | 0 | 322 | 0
Average Recorded Investment - with an allowance recorded |  |  | 230 |  |  | 339 | 292
Recorded Investment - without allowance recorded | 179 |  | 214 |  | 179 | 214 | 319
Unpaid Principal Balance - without allowance recorded | 242 |  | 278 |  | 242 | 278 | 685
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 |  | 0 |  | 0 | 0 |
Average Recorded Investment - without allowance recorded | 239 |  | 219 |  | 266 | 222 | 238
Interest Income Recognized - without allowance recorded | 1 | [1] | 2 | [1] | 3 | 4 | 7
SBA PPP Portfolio Segment |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Unpaid Principal Balance - with an allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Related Allowance | 0 |  | 0 |  | 0 | 0 | 0
Average Recorded Investment - with an allowance recorded |  |  |  |  |  |  | 0
Recorded Investment - without allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Unpaid Principal Balance - without allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 |  | 0 |  | 0 | 0 |
Average Recorded Investment - without allowance recorded |  |  |  |  |  |  | 0
Interest Income Recognized - without allowance recorded |  |  |  |  |  |  | 0
Home Equity |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | 318 |  | 828 |  | 318 | 828 | 318
Unpaid Principal Balance - with an allowance recorded | 318 |  | 828 |  | 318 | 828 | 318
Related Allowance | 89 |  | 310 |  | 89 | 310 | 69
Average Recorded Investment - with an allowance recorded | 318 |  | 828 |  | 318 | 658 | 522
Recorded Investment - without allowance recorded | 52 |  | 59 |  | 52 | 59 | 55
Unpaid Principal Balance - without allowance recorded | 189 |  | 197 |  | 189 | 197 | 192
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 |  | 0 |  | 0 | 0 |
Average Recorded Investment - without allowance recorded | 52 |  | 63 |  | 53 | 84 | 115
Consumer |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Unpaid Principal Balance - with an allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Related Allowance | 0 |  | 0 |  | 0 | 0 | 0
Average Recorded Investment - with an allowance recorded |  |  |  |  |  |  | 0
Recorded Investment - without allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Unpaid Principal Balance - without allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 |  | 0 |  | 0 | 0 |
Average Recorded Investment - without allowance recorded |  |  |  |  |  | 2 | 1
HPFC Portfolio Segment |  |  |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |  |  |
Recorded Investment - with an allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Unpaid Principal Balance - with an allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Related Allowance | 0 |  | 0 |  | 0 | 0 | 0
Average Recorded Investment - with an allowance recorded |  |  |  |  |  |  | 0
Recorded Investment - without allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Unpaid Principal Balance - without allowance recorded | 0 |  | 0 |  | 0 | 0 | 0
Impaired Financing Receivable With No Related Allowance Related Allowance | $ 0 |  | $ 0 |  | $ 0 | $ 0 |
Average Recorded Investment - without allowance recorded |  |  |  |  |  |  | $ 0
[1] | (1) Negative interest income represents the re-allocation of income between "with an allowance recorded" and "without an allowance recorded" (or vice versa) during the period.

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