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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 | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded Investment - with an allowance recorded | $ 3,227 | $ 4,244 | $ 3,227 | $ 4,244 | $ 4,476
Unpaid Principal Balance - with an allowance recorded | 3,227 | 4,244 | 3,227 | 4,244 | 4,476
Related Allowance | 738 | 756 | 738 | 756 | 824
Average Recorded Investment - with an allowance recorded | 4,115 | 4,282 | 4,205 | 5,088 | 5,921
Interest Income Recognized - with an allowance recorded | 31 | 33 | 93 | 113 | 138
Recorded Investment - without allowance recorded | 2,290 | 7,868 | 2,290 | 7,868 | 2,450
Unpaid Principal Balance - without allowance recorded | 3,414 | 9,682 | 3,414 | 9,682 | 3,001
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 | 0 | 0 |
Average Recorded Investment - without allowance recorded | 1,960 | 8,069 | 2,081 | 6,098 | 5,368
Interest Income Recognized - without allowance recorded | 15 | 15 | 43 | 33 | 55
Impaired Financing Receivable, Recorded Investment | 5,517 | 12,112 | 5,517 | 12,112 | 6,926
Impaired financing receivable, unpaid principal balance | 6,641 | 13,926 | 6,641 | 13,926 | 7,477
Impaired Financing Receivable, Average Recorded Investment | 6,075 | 12,351 | 6,286 | 11,186 | 11,289
Impaired Financing Receivable, Interest Income, Accrual Method | 46 | 48 | 136 | 146 | 193
Residential Real Estate |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded Investment - with an allowance recorded | 2,337 | 3,577 | 2,337 | 3,577 | 3,471
Unpaid Principal Balance - with an allowance recorded | 2,337 | 3,577 | 2,337 | 3,577 | 3,471
Related Allowance | 337 | 619 | 337 | 619 | 586
Average Recorded Investment - with an allowance recorded | 3,026 | 3,541 | 3,137 | 2,428 | 3,591
Interest Income Recognized - with an allowance recorded | 28 | 27 | 84 | 96 | 127
Recorded Investment - without allowance recorded | 1,543 | 1,607 | 1,543 | 1,607 | 1,291
Unpaid Principal Balance - without allowance recorded | 2,007 | 1,807 | 2,007 | 1,807 | 1,415
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 | 0 | 0 |
Average Recorded Investment - without allowance recorded | 1,337 | 1,750 | 1,325 | 1,582 | 1,524
Interest Income Recognized - without allowance recorded | 11 | 13 | 28 | 27 | 34
Commercial Real Estate |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded Investment - with an allowance recorded | 130 | 349 | 130 | 349 | 131
Unpaid Principal Balance - with an allowance recorded | 130 | 349 | 130 | 349 | 131
Related Allowance | 29 | 23 | 29 | 23 | 23
Average Recorded Investment - with an allowance recorded | 130 | 350 | 130 | 2,428 | 1,969
Interest Income Recognized - with an allowance recorded | 3 | 6 | 9 | 17 | 11
Recorded Investment - without allowance recorded | 276 | 4,658 | 276 | 4,658 | 799
Unpaid Principal Balance - without allowance recorded | 435 | 4,944 | 435 | 4,944 | 975
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 | 0 | 0 |
Average Recorded Investment - without allowance recorded | 278 | 4,700 | 408 | 2,637 | 2,269
Interest Income Recognized - without allowance recorded | 3 |  | 10 |  | 13
Commercial |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded Investment - with an allowance recorded | 442 | 0 | 442 | 0 | 556
Unpaid Principal Balance - with an allowance recorded | 442 | 0 | 442 | 0 | 556
Related Allowance | 303 | 0 | 303 | 0 | 53
Average Recorded Investment - with an allowance recorded | 301 |  | 365 |  | 111
Recorded Investment - without allowance recorded | 204 | 1,548 | 204 | 1,548 | 230
Unpaid Principal Balance - without allowance recorded | 267 | 2,725 | 267 | 2,725 | 293
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 | 0 | 0 |
Average Recorded Investment - without allowance recorded | 214 | 1,580 | 218 | 1,666 | 1,379
Interest Income Recognized - without allowance recorded | 1 | 2 | 5 | 6 | 8
Home Equity |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded Investment - with an allowance recorded | 318 | 318 | 318 | 318 | 318
Unpaid Principal Balance - with an allowance recorded | 318 | 318 | 318 | 318 | 318
Related Allowance | 69 | 114 | 69 | 114 | 162
Average Recorded Investment - with an allowance recorded | 658 | 391 | 573 | 232 | 250
Recorded Investment - without allowance recorded | 267 | 55 | 267 | 55 | 124
Unpaid Principal Balance - without allowance recorded | 705 | 206 | 705 | 206 | 305
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 | 0 | 0 |
Average Recorded Investment - without allowance recorded | 131 | 39 | 130 | 213 | 195
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 | 6
Unpaid Principal Balance - without allowance recorded | 0 | 0 | 0 | 0 | 13
Impaired Financing Receivable With No Related Allowance Related Allowance | 0 | 0 | 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 | 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

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