| FAIR VALUE MEASUREMENTS (Tables) | 12 Months Ended | 
|---|---|
| Dec. 31, 2023 | |
| Fair Value Measurements [Abstract] | |
| Schedule of Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis | (Dollars in Thousands)  Level 1  Level 2  Level 3  Total Inputs  Inputs  Inputs  Value  2023  ASSETS:  Securities Available U.S. Government Treasury  $  24,679 $  - $  - $  24,679 U.S. Government Agency  - 145,034 - 145,034 States and Political Subdivisions  - 39,083 - 39,083 Mortgage-Backed Securities  - 63,303 - 63,303 Corporate Debt Securities  - 57,552 - 57,552 Equity Securities  - - 3,450 3,450 Loans Held for Sale  - 28,211 - 28,211 Interest Rate Swap Derivative  - 5,317 - 5,317 Residential Mortgage Loan Commitments ("IRLC")  - - 523 523 LIABILITIES:  Forward Sales Contracts ("Hedge Derivative")  - 209 - 209 2022  ASSETS:  Securities Available for U.S. Government Treasury  $  22,050 $  - $  - $  22,050 U.S. Government Agency  - 186,052 - 186,052 State and Political Subdivisions  - 40,329 - 40,329 Mortgage-Backed Securities  - 69,405 - 69,405 Corporate Debt Securities  - 88,236 - 88,236 Equity Securities  - - 10 10 Loans Held for Sale  - 26,909 - 26,909 Interest Rate Swap Derivative  - 6,195 - 6,195 Forward Sales Contracts ("Hedge Derivative")  - 187 - 187 Residential Mortgage Loan Commitments ("IRLC")  - - 819 819 | 
| Schedule of Financial Instruments with Estimated Fair Values | 2023  (Dollars in Thousands)  Carrying  Level 1  Level 2  Level 3  Value  Inputs  Inputs  Inputs  ASSETS:  Cash  $  83,118 $  83,118 $  - $  - Fed Funds Sold and Interest Bearing Deposits  228,949 228,949 - - Investment Securities, Held to Maturity  625,022 441,189 150,562 - Other Equity Securities (1) 2,848 - 2,848 - Mortgage Servicing Rights  831 - - 1,280 Loans, Net of Allowance for Credit Losses  2,703,977 - - 2,510,529 LIABILITIES:  Deposits  $  3,701,822 $  - $  3,243,896 $  - Short-Term 35,341 - 35,341 - Subordinated Notes Payable  52,887 - 44,323 - Long-Term Borrowings  315 - 315 - 2022  (Dollars in Thousands)  Carrying  Level 1  Level 2  Level 3  Value  Inputs  Inputs  Inputs  ASSETS:  Cash  $  72,114 $  72,114 $  - $  - Short-Term Investments  528,536 528,536 - - Investment Securities, Held to Maturity  660,774 431,733 180,968 - Other Equity Securities (1) 2,848 - 2,848 - Mortgage Servicing Rights  2,599 - - 4,491 Loans, Net of Allowance for Credit Losses  2,522,617 - - 2,377,229 LIABILITIES:  Deposits  $  3,939,317 $  - $  3,310,383 $  - Short-Term 56,793 - 56,793 - Subordinated Notes Payable  52,887 - 45,763 - Long-Term Borrowings  513 - 513 - | 
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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