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LOANS - Average Recorded Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Business Activities Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | $ 7,894 | $ 13,028
Interest Income Recognized | 24 | 45
Business Activities Loans | Total commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | 3,010 | 8,981
Interest Income Recognized | 4 | 26
Business Activities Loans | Total commercial real estate | Construction and land development |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with related allowance | 261 | 5
Interest income recognized, with related allowance | 1 |
Business Activities Loans | Total commercial real estate | Other commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with no related allowance | 1,728 | 7,773
Interest income recognized, with no related allowance | 3 | 26
Average recorded investment, with related allowance | 1,021 | 1,203
Business Activities Loans | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | 1,304 | 1,417
Interest Income Recognized | 1 | 2
Business Activities Loans | Commercial and industrial | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with no related allowance | 1,071 | 527
Interest income recognized, with no related allowance | 1 | 2
Average recorded investment, with related allowance | 233 | 890
Business Activities Loans | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | 3,568 | 2,617
Interest Income Recognized | 19 | 17
Business Activities Loans | Residential real estate | Residential mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with no related allowance | 2,589 | 1,965
Interest income recognized, with no related allowance | 17 | 15
Average recorded investment, with related allowance | 979 | 652
Interest income recognized, with related allowance | 2 | 2
Business Activities Loans | Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | 12 | 13
Business Activities Loans | Consumer | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with related allowance | 12 | 13
Acquired Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | 428 | 1,408
Acquired Loans | Total commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | 70 | 126
Acquired Loans | Total commercial real estate | Other commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with no related allowance |  | 90
Average recorded investment, with related allowance | 70 | 36
Acquired Loans | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment |  | 479
Acquired Loans | Commercial and industrial | Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with no related allowance |  | 479
Acquired Loans | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average Recorded Investment | 358 | 803
Acquired Loans | Residential real estate | Residential mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Average recorded investment, with no related allowance | 195 | 436
Average recorded investment, with related allowance | $ 163 | $ 367

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