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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 | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financial assets: |  |
Held-to-maturity securities, at amortized cost | $ 549,961 | $ 546,583
Held-to-maturity securities, fair value | 483,547 | 506,193
Mortgage servicing rights | 4,321 | 4,412
Financial liabilities: |  |
Time deposits | 609,195 | 291,568
Short-term Debt, Fair Value | 469,103 | 264,779
Junior subordinated debentures | 31,475 | 31,032
Commercial Real Estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,532,605 | 1,550,379
Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 379,502 | 414,353
Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,460,556 | 1,494,707
Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 228,878 | 237,967
Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | 16,385 | 17,853
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 | 483,547 | 506,193
Mortgage servicing rights | 0 | 0
Financial liabilities: |  |
Time deposits | 609,195 | 291,568
Short-term Debt, Fair Value | 469,103 | 264,779
Junior subordinated debentures | 31,475 | 31,032
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 | 4,321 | 4,412
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 | 1,532,605 | 1,550,379
Company Determined Fair Value (Level 3) | Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 379,502 | 414,353
Company Determined Fair Value (Level 3) | Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,460,556 | 1,494,707
Company Determined Fair Value (Level 3) | Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 228,878 | 237,967
Company Determined Fair Value (Level 3) | Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | 16,385 | 17,853
Carrying Amount |  |
Financial assets: |  |
Held-to-maturity securities, at amortized cost | 549,961 | 546,583
Mortgage servicing rights | 2,316 | 2,458
Financial liabilities: |  |
Time deposits | 617,609 | 300,451
Short-term Debt, Fair Value | 470,140 | 265,176
Junior subordinated debentures | 44,331 | 44,331
Carrying Amount | Commercial Real Estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,634,347 | 1,605,279
Carrying Amount | Commercial |  |
Financial assets: |  |
Loans receivable, net of allowance | 395,549 | 424,685
Carrying Amount | Residential real estate |  |
Financial assets: |  |
Loans receivable, net of allowance | 1,742,359 | 1,691,177
Carrying Amount | Home equity |  |
Financial assets: |  |
Loans receivable, net of allowance | 231,155 | 232,203
Carrying Amount | Consumer |  |
Financial assets: |  |
Loans receivable, net of allowance | $ 18,596 | $ 20,087

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