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LOANS AND RELATED ALLOWANCE FOR LOAN LOSSES, Primary Segments Portfolio and Accretable Yield for PCI Loans (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Apr. 17, 2020
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | $ 1,724,999 | $ 1,441,533 |  |
Individually evaluated for impairment | 11,969 | 15,533 |  |
Loans acquired with deteriorated credit quality | 3,306 | 3,802 |  |
Collectively evaluated for impairment | 1,709,724 | 1,422,198 |  |
Net unamortized loan fees and costs | 2,573 | 2,038 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Allowance for loan losses | 18,552 | 17,304 |  |
Individually evaluated for impairment | 102 | 121 | $ 510 |
Allowance for loan losses related to loans acquired with deteriorated credit quality | 0 | 0 |  |
Collectively evaluated for impairment | 18,450 | 17,183 | 15,305 |
Loans and Leases Receivable, Net Amount [Abstract] |  |  |  |
Net loans | 1,706,447 | 1,424,229 |  |
Net loans, individually evaluated for impairment | 11,867 | 15,412 |  |
Net loans, loans acquired with deteriorated credit quality | 3,306 | 3,802 |  |
Net loans, collectively evaluated for impairment | 1,691,274 | 1,405,015 |  |
Changes in the accretable yield for purchased credit-impaired loans [Roll Forward] |  |  |  |
Balance at beginning of period | 370 | 788 |  |
Accretion | (759) | (499) |  |
Reclassification of non-accretable discount | 1,212 | 81 |  |
Balance at end of period | 823 | 370 |  |
Loans acquired with specific evidence of deterioration in credit quality [Abstract] |  |  |  |
Outstanding balance | 5,758 | 6,159 |  |
Carrying amount | 3,306 | 3,802 |  |
Real estate loans serviced for Freddie Mac and Fannie Mae | 187,754 | 197,037 |  |
Real estate loans sold to Freddie Mac and Fannie Mae without recourse | 177,575 | 184,897 |  |
Portfolio balance under MPF | 10,179 | 12,140 |  |
First-loss position for MPF maintained by FHLB | 161 |  |  |
Credit enhancement for MPF by FHLB | $ 348 |  |  |
Number of days past for loan to be considered impaired, Minimum | 90 days |  |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] |  |  |  |
Unpaid principal balance | $ 14,653 | 17,905 |  |
Minimum [Member] |  |  |  |
Loans acquired with specific evidence of deterioration in credit quality [Abstract] |  |  |  |
Number of days past for loan to be considered impaired, Minimum | 90 days |  |  |
First Mortgage [Member] | Minimum [Member] |  |  |  |
Loans acquired with specific evidence of deterioration in credit quality [Abstract] |  |  |  |
Period of mortgage on real estate | 15 years |  |  |
First Mortgage [Member] | Maximum [Member] |  |  |  |
Loans acquired with specific evidence of deterioration in credit quality [Abstract] |  |  |  |
Period of mortgage on real estate | 30 years |  |  |
Second Mortgage [Member] | Maximum [Member] |  |  |  |
Loans acquired with specific evidence of deterioration in credit quality [Abstract] |  |  |  |
Period of mortgage on real estate | 15 years |  |  |
Paycheck Protection Program [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Loans originated |  | 24,300 |  |
Outstanding principal balances | $ 0 | 6,800 |  |
Maximum amount of loan forgiven by guidance from SBA | 150 |  |  |
Real Estate Loans [Member] | Residential [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 210,213 | 201,097 |  |
Individually evaluated for impairment | 335 | 620 |  |
Loans acquired with deteriorated credit quality | 9 | 14 |  |
Collectively evaluated for impairment | 209,869 | 200,463 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 4 | 12 | 18 |
Collectively evaluated for impairment | 1,052 | 1,135 | 1,156 |
Real Estate Loans [Member] | Commercial [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 876,569 | 687,338 |  |
Individually evaluated for impairment | 5,675 | 8,381 |  |
Loans acquired with deteriorated credit quality | 1,856 | 2,145 |  |
Collectively evaluated for impairment | 869,038 | 676,812 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 57 | 61 | 95 |
Collectively evaluated for impairment | 10,063 | 8,038 | 6,121 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] |  |  |  |
Unpaid principal balance | 6,655 | 9,330 |  |
Real Estate Loans [Member] | Agricultural [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 313,614 | 312,011 |  |
Individually evaluated for impairment | 5,380 | 5,355 |  |
Loans acquired with deteriorated credit quality | 1,441 | 1,643 |  |
Collectively evaluated for impairment | 307,055 | 305,013 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 24 | 14 | 83 |
Collectively evaluated for impairment | 4,565 | 4,715 | 4,870 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] |  |  |  |
Unpaid principal balance | 6,062 | 5,694 |  |
Real Estate Loans [Member] | Construction [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 80,691 | 55,036 |  |
Individually evaluated for impairment | 0 | 0 |  |
Loans acquired with deteriorated credit quality | 0 | 0 |  |
Collectively evaluated for impairment | 80,691 | 55,036 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 |
Collectively evaluated for impairment | 801 | 434 | 122 |
Consumer [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 86,650 | 25,858 |  |
Individually evaluated for impairment | 4 | 0 |  |
Loans acquired with deteriorated credit quality | 0 | 0 |  |
Collectively evaluated for impairment | 86,646 | 25,858 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 4 | 0 | 0 |
Collectively evaluated for impairment | 131 | 262 | 321 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] |  |  |  |
Unpaid principal balance | 4 |  |  |
Other Commercial Loans [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 63,222 | 74,585 |  |
Individually evaluated for impairment | 102 | 186 |  |
Loans acquired with deteriorated credit quality | 0 | 0 |  |
Collectively evaluated for impairment | 63,120 | 74,399 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 13 | 34 | 170 |
Collectively evaluated for impairment | 1,027 | 989 | 1,056 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] |  |  |  |
Unpaid principal balance | 797 | 813 |  |
Other Agricultural Loans [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 34,832 | 39,852 |  |
Individually evaluated for impairment | 473 | 991 |  |
Loans acquired with deteriorated credit quality | 0 | 0 |  |
Collectively evaluated for impairment | 34,097 | 38,861 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 144 |
Collectively evaluated for impairment | 489 | 558 | 720 |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] |  |  |  |
Unpaid principal balance | 669 | 1,274 |  |
State and Political Subdivision Loans [Member] |  |  |  |
Segments of loan portfolio and allowance for loan losses [Abstract] |  |  |  |
Total loan receivables | 59,208 | 45,756 |  |
Individually evaluated for impairment | 0 | 0 |  |
Loans acquired with deteriorated credit quality | 0 | 0 |  |
Collectively evaluated for impairment | 59,208 | 45,756 |  |
Loans And Leases Receivable, Allowance For Loan Losses [Abstract] |  |  |  |
Individually evaluated for impairment | 0 | 0 | 0 |
Collectively evaluated for impairment | $ 322 | $ 281 | $ 479 |
MidCoast Community Bancorp, Inc [Member] |  |  |  |
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] |  |  |  |
Unpaid principal balance |  |  |  | $ 8,005
Purchase accounting adjustments related to purchased impaired loans [Abstract] |  |  |  |
Contractually required principal and interest at acquisition |  |  |  | 8,801
Non-accretable discount |  |  |  | (2,966)
Expected cash flows |  |  |  | 5,835
Accretable discount |  |  |  | (966)
Estimated fair value |  |  |  | $ 4,869

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- Definition Amount of reclassified non-accretable discount recognized for the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities, with evidence of deterioration of credit quality. + References No definition available. + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements, related to loans acquired with deteriorated credit quality. + References No definition available. + Details
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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. Related to Collectively evaluated for impairment. + References No definition available. + Details
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- Definition Refers to Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. Related to Individually evaluated for impairment. + References No definition available. + Details
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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. Related to Loans acquired with deteriorated credit quality. + References No definition available. + Details
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- Definition Amount of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123409700&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details
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- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123409700&loc=d3e13503-111538 + Details
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- Definition The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123409700&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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