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FAIR VALUE MEASUREMENT AND DISCLOSURE (Schedule of Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financial assets: |  |
Held-to-maturity securities, at amortized cost | $ 540,349 | $ 544,931
Held-to-maturity securities, fair value | 496,517 | 510,595
Mortgage servicing rights | 4,285 | 4,124
Financial liabilities: |  |
Time deposits | 654,668 | 634,856
Short-term Debt, Fair Value | 600,628 | 484,849
Junior subordinated debentures | 32,029 | 31,918
Commercial Real Estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,573,769 | 1,540,327
Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 379,350 | 385,585
Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,496,942 | 1,488,248
Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 233,924 | 233,025
Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | 14,774 | 15,279
Readily Available Market Prices (Level 1) |  |
Financial assets: |  |
Held-to-maturity securities, fair value | 0 | 0
Mortgage servicing rights | 0 | 0
Financial liabilities: |  |
Time deposits | 0 | 0
Short-term Debt, Fair Value | 0 | 0
Junior subordinated debentures | 0 | 0
Readily Available Market Prices (Level 1) | Commercial Real Estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Readily Available Market Prices (Level 1) | Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Readily Available Market Prices (Level 1) | Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Readily Available Market Prices (Level 1) | Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Readily Available Market Prices (Level 1) | Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Observable Market Data (Level 2) |  |
Financial assets: |  |
Held-to-maturity securities, fair value | 496,517 | 510,595
Mortgage servicing rights | 0 | 0
Financial liabilities: |  |
Time deposits | 654,668 | 634,856
Short-term Debt, Fair Value | 600,628 | 484,849
Junior subordinated debentures | 32,029 | 31,918
Observable Market Data (Level 2) | Commercial Real Estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Observable Market Data (Level 2) | Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Observable Market Data (Level 2) | Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Observable Market Data (Level 2) | Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Observable Market Data (Level 2) | Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | 0 | 0
Company Determined Fair Value (Level 3) |  |
Financial assets: |  |
Held-to-maturity securities, fair value | 0 | 0
Mortgage servicing rights | 4,285 | 4,124
Financial liabilities: |  |
Time deposits | 0 | 0
Short-term Debt, Fair Value | 0 | 0
Junior subordinated debentures | 0 | 0
Company Determined Fair Value (Level 3) | Commercial Real Estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,573,769 | 1,540,327
Company Determined Fair Value (Level 3) | Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 379,350 | 385,585
Company Determined Fair Value (Level 3) | Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,496,942 | 1,488,248
Company Determined Fair Value (Level 3) | Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 233,924 | 233,025
Company Determined Fair Value (Level 3) | Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | 14,774 | 15,279
Carrying Amount |  |
Financial assets: |  |
Held-to-maturity securities, at amortized cost | 540,349 | 544,931
Mortgage servicing rights | 2,236 | 2,274
Financial liabilities: |  |
Time deposits | 660,786 | 640,539
Short-term Debt, Fair Value | 601,499 | 485,607
Junior subordinated debentures | 44,331 | 44,331
Carrying Amount | Commercial Real Estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,685,428 | 1,653,435
Carrying Amount | Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 392,935 | 399,032
Carrying Amount | Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,751,917 | 1,753,124
Carrying Amount | Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 238,314 | 238,124
Carrying Amount | Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | $ 16,833 | $ 17,444

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