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FAIR VALUE MEASUREMENTS AND FAIR VALUES OF FINANCIAL INSTRUMENTS - Assets Measured at Fair Value (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Assets Measured at Fair Value |  |
Total, fair value | $ 526,837 | $ 517,679
Impaired loans with a valuation allowance | 3,392 | 6,540
Valuation allowance | (427) | (740)
Impaired loans, net | 3,392 | 6,540
Interest rate swap agreements |  |
Assets Measured at Fair Value |  |
Fair value derivative asset | 1,619 | 3,104
Fair value of the derivative liability | 1,619 | 3,104
Obligations of the U.S. Treasury |  |
Assets Measured at Fair Value |  |
Total, fair value | 35,774 | 24,912
Obligations of U.S. Government agencies |  |
Assets Measured at Fair Value |  |
Total, fair value | 22,785 | 24,091
Bank holding company debt securities |  |
Assets Measured at Fair Value |  |
Total, fair value | 27,415 | 17,987
Obligations Of States And Political Subdivisions Tax Exempt |  |
Assets Measured at Fair Value |  |
Total, fair value | 139,400 | 148,028
Obligations Of States And Political Subdivisions Taxable |  |
Assets Measured at Fair Value |  |
Total, fair value | 63,898 | 72,765
Residential Passthrough Securities |  |
Assets Measured at Fair Value |  |
Total, fair value | 106,043 | 98,181
Residential Collateralized Mortgage Obligations |  |
Assets Measured at Fair Value |  |
Total, fair value | 44,761 | 44,247
Commercial Mortgage Backed Securities |  |
Assets Measured at Fair Value |  |
Total, fair value | 86,761 | 87,468
Recurring fair value measurements |  |
Assets Measured at Fair Value |  |
Total, fair value | 526,837 | 517,679
Marketable equity security | 895 | 971
Servicing rights | 2,640 | 2,329
Total asset fair value measurements | 531,991 | 524,083
Recurring fair value measurements | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 35,774 | 24,912
Marketable equity security | 895 | 971
Servicing rights | 0 | 0
Total asset fair value measurements | 36,669 | 25,883
Recurring fair value measurements | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 491,063 | 492,767
Marketable equity security | 0 | 0
Servicing rights | 0 | 0
Total asset fair value measurements | 492,682 | 495,871
Recurring fair value measurements | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Marketable equity security | 0 | 0
Servicing rights | 2,640 | 2,329
Total asset fair value measurements | 2,640 | 2,329
Recurring fair value measurements | Interest rate swap agreements |  |
Assets Measured at Fair Value |  |
Fair value derivative asset | 1,619 | 3,104
Fair value of the derivative liability | 1,619 | 3,104
Recurring fair value measurements | Interest rate swap agreements | Level 1 |  |
Assets Measured at Fair Value |  |
Fair value derivative asset | 0 | 0
Fair value of the derivative liability | 0 | 0
Recurring fair value measurements | Interest rate swap agreements | Level 2 |  |
Assets Measured at Fair Value |  |
Fair value derivative asset | 1,619 | 3,104
Fair value of the derivative liability | 1,619 | 3,104
Recurring fair value measurements | Interest rate swap agreements | Level 3 |  |
Assets Measured at Fair Value |  |
Fair value derivative asset | 0 | 0
Fair value of the derivative liability | 0 | 0
Recurring fair value measurements | Obligations of the U.S. Treasury |  |
Assets Measured at Fair Value |  |
Total, fair value | 35,774 | 24,912
Recurring fair value measurements | Obligations of the U.S. Treasury | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 35,774 | 24,912
Recurring fair value measurements | Obligations of the U.S. Treasury | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Obligations of the U.S. Treasury | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Obligations of U.S. Government agencies |  |
Assets Measured at Fair Value |  |
Total, fair value | 22,785 | 24,091
Recurring fair value measurements | Obligations of U.S. Government agencies | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Obligations of U.S. Government agencies | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 22,785 | 24,091
Recurring fair value measurements | Obligations of U.S. Government agencies | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Bank holding company debt securities |  |
Assets Measured at Fair Value |  |
Total, fair value | 27,415 | 17,987
Recurring fair value measurements | Bank holding company debt securities | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Bank holding company debt securities | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 27,415 | 17,987
Recurring fair value measurements | Bank holding company debt securities | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt |  |
Assets Measured at Fair Value |  |
Total, fair value | 139,400 | 148,028
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 139,400 | 148,028
Recurring fair value measurements | Obligations Of States And Political Subdivisions Tax Exempt | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable |  |
Assets Measured at Fair Value |  |
Total, fair value | 63,898 | 72,765
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 63,898 | 72,765
Recurring fair value measurements | Obligations Of States And Political Subdivisions Taxable | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Residential Passthrough Securities |  |
Assets Measured at Fair Value |  |
Total, fair value | 106,043 | 98,181
Recurring fair value measurements | Residential Passthrough Securities | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Residential Passthrough Securities | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 106,043 | 98,181
Recurring fair value measurements | Residential Passthrough Securities | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Residential Collateralized Mortgage Obligations |  |
Assets Measured at Fair Value |  |
Total, fair value | 44,761 | 44,247
Recurring fair value measurements | Residential Collateralized Mortgage Obligations | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Residential Collateralized Mortgage Obligations | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 44,761 | 44,247
Recurring fair value measurements | Residential Collateralized Mortgage Obligations | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Commercial Mortgage Backed Securities |  |
Assets Measured at Fair Value |  |
Total, fair value | 86,761 | 87,468
Recurring fair value measurements | Commercial Mortgage Backed Securities | Level 1 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Recurring fair value measurements | Commercial Mortgage Backed Securities | Level 2 |  |
Assets Measured at Fair Value |  |
Total, fair value | 86,761 | 87,468
Recurring fair value measurements | Commercial Mortgage Backed Securities | Level 3 |  |
Assets Measured at Fair Value |  |
Total, fair value | 0 | 0
Nonrecurring fair value measurements |  |
Assets Measured at Fair Value |  |
Total asset fair value measurements | 3,470 | 6,484
Impaired loans, net | 2,965 | 5,800
Foreclosed assets held for sale | 505 | 684
Nonrecurring fair value measurements | Level 1 |  |
Assets Measured at Fair Value |  |
Total asset fair value measurements | 0 | 0
Impaired loans, net | 0 | 0
Foreclosed assets held for sale | 0 | 0
Nonrecurring fair value measurements | Level 2 |  |
Assets Measured at Fair Value |  |
Total asset fair value measurements | 0 | 0
Impaired loans, net | 0 | 0
Foreclosed assets held for sale | 0 | 0
Nonrecurring fair value measurements | Level 3 |  |
Assets Measured at Fair Value |  |
Total asset fair value measurements | 3,470 | 6,484
Impaired loans, net | 2,965 | 5,800
Foreclosed assets held for sale | $ 505 | $ 684

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