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LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Narrative) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 USD ($) loan | Mar. 31, 2023 USD ($) loan | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) loan | Jun. 30, 2022 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) loan | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
SBA PPP Loans, Originations, Number of Contracts Outstanding | loan | 4 |  |  | 4 |  |  | 5 |  |
Loans and Leases Receivable, Related Parties, Description |  | At June 30, 2023 and December 31, 2022, outstanding loans to certain officers, directors and their associated companies were less than 5% of the Company's shareholders' equity. |  | At June 30, 2023 and December 31, 2022, outstanding loans to certain officers, directors and their associated companies were less than 5% of the Company's shareholders' equity. |  |  |  |  |
Proceeds from the sale of mortgage loans |  |  |  | $ 71,780 | $ 95,846 |  |  |  |
Gain on sale of mortgage loans |  |  |  | (761) | (2,165) |  |  |  |
Loans held for sale, at fair value (book value of $11,685 and $5,259, respectively) | $ 12,036 |  |  | 12,036 |  |  | $ 5,197 |  |
Allowance for Loan and Lease Losses, Period Increase (Decrease) |  |  |  | 61 |  |  |  |  |
Allowance for credit losses | 36,983 | $ 37,134 | $ 34,244 | 36,983 | 34,244 |  | 36,922 | $ 31,770 | $ 33,256
(Credit) provision for loan losses | 305 |  | 2,511 | $ 744 | 1,275 | $ 4,430 |  |  |
Other industry exposures |  |  |  | 0 |  |  |  |  |
Non-Accrual Loans | 3,048 |  |  | $ 3,048 |  |  | 2,991 |  |
Loans outstanding | 4,100,131 |  |  | 4,100,131 |  |  | 4,010,353 |  |
Interest lost on nonaccrual loans | 24 |  | 38 | 50 | 85 |  |  |  |
Loans and Leases Receivable, Excluded Accrued Interest from Amortized Cost | 10,800 |  |  | 10,800 |  |  | 10,300 |  |
Recorded Investment |  |  |  |  |  |  | 2,566 |  |
Loans modified | loan |  | 0 |  |  |  |  |  |  |
FHLB advances, general debt obligations, pledged collateral | 1,900,000 |  |  | 1,900,000 |  |  | 1,800,000 |  |
Residential real estate |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 1,748,303 |  |  | 1,748,303 |  |  | 1,700,266 |  |
Allowance for Loan and Lease Losses, Period Increase (Decrease) |  |  |  | $ 1,500 |  |  |  |  |
Loan Portfolio Increase (Decrease), Percentage |  |  |  | 3.00% |  |  |  |  |
Allowance for credit losses | 10,627 | $ 10,812 | 8,438 | $ 10,627 | 8,438 |  | 9,089 | 6,476 | 6,133
(Credit) provision for loan losses | (214) |  | 1,978 | 1,523 | 2,321 | 3,022 |  |  |
Non-Accrual Loans | 1,781 |  |  | 1,781 |  |  | 1,733 |  |
Loans outstanding | 1,748,303 |  |  | 1,748,303 |  |  | 1,700,266 |  |
Mortgage Loans in Process of Foreclosure, Amount | 378 |  |  | 378 |  |  | 481 |  |
Commercial real estate - non-owner-occupied |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 1,341,138 |  |  | 1,341,138 |  |  | 1,292,443 |  |
Allowance for Loan and Lease Losses, Period Increase (Decrease) |  |  |  | $ (1,100) |  |  |  |  |
Loan Portfolio Increase (Decrease), Percentage |  |  |  | 4.00% |  |  |  |  |
Allowance for credit losses | 16,155 | 16,324 | 16,210 | $ 16,155 | 16,210 |  | 17,296 | 16,572 | 18,834
(Credit) provision for loan losses | (170) |  | (362) | (1,143) | (2,625) | (1,541) |  |  |
Non-Accrual Loans | 9 |  |  | 9 |  |  | 11 |  |
Loans outstanding | 1,341,138 |  |  | 1,341,138 |  |  | 1,292,443 |  |
Commercial |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 422,437 |  |  | 422,437 |  |  | 430,131 |  |
Allowance for credit losses | 4,795 | 4,581 | 5,146 | 4,795 | 5,146 |  | 5,446 | 4,842 | 4,202
(Credit) provision for loan losses | 684 |  | 397 | 32 | 1,225 | 1,907 |  |  |
Non-Accrual Loans | 729 |  |  | 729 |  |  | 715 |  |
Loans outstanding | 422,437 |  |  | 422,437 |  |  | 430,131 |  |
Home equity |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 232,618 |  |  | 232,618 |  |  | 234,428 |  |
Allowance for credit losses | 2,397 | 2,440 | 1,796 | 2,397 | 1,796 |  | 2,225 | 1,435 | 1,469
(Credit) provision for loan losses | (43) |  | 275 | 172 | 241 | 669 |  |  |
Non-Accrual Loans | 466 |  |  | 466 |  |  | 486 |  |
Loans outstanding | 232,618 |  |  | 232,618 |  |  | 234,428 |  |
Consumer |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 19,771 |  |  | 19,771 |  |  | 20,591 |  |
Allowance for credit losses | 658 | $ 507 | 153 | 658 | 153 |  | 504 | $ 106 | $ 79
(Credit) provision for loan losses | 167 |  | 61 | 171 | 153 | $ 552 |  |  |
Non-Accrual Loans | 16 |  |  | 16 |  |  | 0 |  |
Loans outstanding | 19,771 |  |  | 19,771 |  |  | 20,591 |  |
Fixed Rate Residential Mortgage |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from the sale of mortgage loans | 36,000 |  | 47,000 | 71,100 | 93,700 |  |  |  |
Gain on sale of mortgage loans | (377) |  | (1,000) | (761) | (2,200) |  |  |  |
Loans held for sale, at fair value (book value of $11,685 and $5,259, respectively) | 12,100 |  |  | 12,100 |  |  | 5,300 |  |
Commercial |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 422,437 |  |  | 422,437 |  |  | 430,131 |  |
Recorded Investment |  |  |  |  |  |  | 0 |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 20,910 |  |  | 20,910 |  |  | 73,686 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 63,599 |  |  | 63,599 |  |  | 70,162 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 63,046 |  |  | 63,046 |  |  | 32,498 |  |
SBA PPP Portfolio |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 469 |  |  | 469 |  |  | 648 |  |
Nonoperating Income (Expense) | Fixed Rate Residential Mortgage |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gain on sale of mortgage loans | (65) |  | $ 73 | $ 20 | $ (69) |  |  |  |
Unrealized gain (loss) on loans held for sale | 42 |  |  |  |  |  | 62 |  |
Non-Residential Building Operators Industry Sector | Loan Concentration Risk | Total Loan Portfolio |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Concentration risk (percentage) |  |  |  | 13.00% |  |  |  |  |
Non-Residential Building Operators Industry Sector | Loan Concentration Risk | Commercial Real Estate |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Concentration risk (percentage) |  |  |  | 32.00% |  |  |  |  |
Residential Building Operators Industry Sector | Loan Concentration Risk | Total Loan Portfolio |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Concentration risk (percentage) |  |  |  | 11.00% |  |  |  |  |
Residential Building Operators Industry Sector | Loan Concentration Risk | Commercial Real Estate |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Concentration risk (percentage) |  |  |  | 26.00% |  |  |  |  |
Substandard [Member] | Commercial |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 4,352 |  |  | $ 4,352 |  |  | 5,156 |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 189 |  |  | 189 |  |  | 149 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 253 |  |  | 253 |  |  | 52 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 49 |  |  | 49 |  |  | 133 |  |
Pass [Member] | Commercial |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Gross loans | 417,061 |  |  | 417,061 |  |  | 423,274 |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 20,721 |  |  | 20,721 |  |  | 73,537 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 63,346 |  |  | 63,346 |  |  | 70,110 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | $ 62,997 |  |  | $ 62,997 |  |  | 32,272 |  |
Performing Financial Instruments [Member] | Loans |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Recorded Investment |  |  |  |  |  |  | 2,100 |  |
Nonperforming Financial Instruments [Member] | Loans |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Recorded Investment |  |  |  |  |  |  | $ 452 |  |

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- Definition Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 35 -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-35 + Details
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