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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 | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment - with an allowance recorded | $ 2,666 | $ 4,413 | $ 2,841
Unpaid Principal Balance - with an allowance recorded | 2,666 | 4,413 | 2,841
Related Allowance | 447 | 927 | 463
Average Recorded Investment - with an allowance recorded | 2,753 | 4,444 | 3,933
Interest Income Recognized - with an allowance recorded | 25 | 31 | 121
Recorded Investment - without allowance recorded | 1,689 | 1,851 | 1,637
Unpaid Principal Balance - without allowance recorded | 2,533 | 2,412 | 2,426
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 |
Average Recorded Investment - without allowance recorded | 1,664 | 2,147 | 1,993
Interest Income Recognized - without allowance recorded | 8 | 15 | 41
Impaired Financing Receivable, Recorded Investment | 4,355 | 6,264 | 4,478
Impaired financing receivable, unpaid principal balance | 5,199 | 6,825 | 5,267
Impaired Financing Receivable, Average Recorded Investment | 4,417 | 6,591 | 5,926
Impaired Financing Receivable, Interest Income, Accrual Method | 33 | 46 | 162
Residential Real Estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment - with an allowance recorded | 2,220 | 3,454 | 2,395
Unpaid Principal Balance - with an allowance recorded | 2,220 | 3,454 | 2,395
Related Allowance | 324 | 553 | 364
Average Recorded Investment - with an allowance recorded | 2,307 | 3,462 | 2,989
Interest Income Recognized - with an allowance recorded | 24 | 30 | 110
Recorded Investment - without allowance recorded | 1,066 | 1,282 | 989
Unpaid Principal Balance - without allowance recorded | 1,247 | 1,406 | 1,116
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 |
Average Recorded Investment - without allowance recorded | 1,028 | 1,286 | 1,258
Interest Income Recognized - without allowance recorded | 3 | 10 | 21
Commercial Real Estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment - with an allowance recorded | 128 | 131 | 128
Unpaid Principal Balance - with an allowance recorded | 128 | 131 | 128
Related Allowance | 34 | 27 | 30
Average Recorded Investment - with an allowance recorded | 128 | 131 | 130
Interest Income Recognized - with an allowance recorded | 1 | 1 | 11
Recorded Investment - without allowance recorded | 272 | 279 | 274
Unpaid Principal Balance - without allowance recorded | 431 | 455 | 433
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 |
Average Recorded Investment - without allowance recorded | 273 | 539 | 381
Interest Income Recognized - without allowance recorded | 3 | 3 | 13
Commercial |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment - with an allowance recorded | 0 | 0 | 0
Unpaid Principal Balance - with an allowance recorded | 0 | 0 | 0
Related Allowance | 0 | 0 | 0
Average Recorded Investment - with an allowance recorded |  | 278 | 292
Recorded Investment - without allowance recorded | 299 | 223 | 319
Unpaid Principal Balance - without allowance recorded | 665 | 286 | 685
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 |
Average Recorded Investment - without allowance recorded | 309 | 226 | 238
Interest Income Recognized - without allowance recorded | 2 | 2 | 7
Home Equity |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment - with an allowance recorded | 318 | 828 | 318
Unpaid Principal Balance - with an allowance recorded | 318 | 828 | 318
Related Allowance | 89 | 347 | 69
Average Recorded Investment - with an allowance recorded | 318 | 573 | 522
Recorded Investment - without allowance recorded | 52 | 67 | 55
Unpaid Principal Balance - without allowance recorded | 190 | 265 | 192
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 |
Average Recorded Investment - without allowance recorded | 54 | 96 | 115
Consumer |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment - with an allowance recorded | 0 | 0 | 0
Unpaid Principal Balance - with an allowance recorded | 0 | 0 | 0
Related Allowance | 0 | 0 | 0
Average Recorded Investment - with an allowance recorded |  |  | 0
Recorded Investment - without allowance recorded | 0 | 0 | 0
Unpaid Principal Balance - without allowance recorded | 0 | 0 | 0
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 |
Average Recorded Investment - without allowance recorded |  |  | 1
HPFC Portfolio Segment |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Recorded Investment - with an allowance recorded | 0 | 0 | 0
Unpaid Principal Balance - with an allowance recorded | 0 | 0 | 0
Related Allowance | 0 | 0 | 0
Average Recorded Investment - with an allowance recorded |  |  | 0
Recorded Investment - without allowance recorded | 0 | 0 | 0
Unpaid Principal Balance - without allowance recorded | 0 | 0 | 0
Impaired Financing Receivable With No Related Allowance Related Allowance | $ 0 | $ 0 |
Average Recorded Investment - without allowance recorded |  |  | $ 0

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