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LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Narrative) (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2022 USD ($) loan | Mar. 31, 2022 USD ($) | Jun. 30, 2021 USD ($) loan | Jun. 30, 2022 USD ($) loan | Jun. 30, 2021 USD ($) loan | Dec. 31, 2021 USD ($) loan | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
SBA PPP Loans, Total Originations, Number of Loans | loan |  |  |  |  |  | 1,620 |  |
SBA PPP Loans, Total Originations |  |  |  |  |  | $ 102,200,000 |  |
Loans and Leases Receivable, Related Parties, Description |  | At June 30, 2022 and December 31, 2021, outstanding loans to certain officers, directors and their associated companies were less than 5% of the Company's shareholders' equity. |  | At June 30, 2022 and December 31, 2021, 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 |  |  |  | $ 95,846,000 | $ 312,474,000 |  |  |
Gain on sale of mortgage loans |  |  |  | 2,165,000 | 9,084,000 |  |  |
Loans held for sale, at fair value (book value of $3,380 and $5,786, respectively) | $ 3,340,000 |  |  | 3,340,000 |  | 5,815,000 |  |
Allowance for Loan and Lease Losses, Period Increase (Decrease) |  |  |  | 1,000,000 |  |  |  |
Allowance for credit losses | 34,244,000 | $ 31,770,000 | $ 32,060,000 | 34,244,000 | 32,060,000 | 33,256,000 | $ 35,775,000 | $ 37,865,000
(Credit) provision for loan losses | 2,511,000 |  | (3,452,000) | $ 1,275,000 | (5,306,000) | (3,817,000) |  |
Other industry exposures |  |  |  | 0 |  |  |  |
Non-Accrual Loans | 3,505,000 |  |  | $ 3,505,000 |  | 4,327,000 |  |
Loans outstanding | 3,724,227,000 |  |  | 3,724,227,000 |  | 3,431,474,000 |  |
Interest lost on nonaccrual loans | 38,000 |  | $ 67,000 | 85,000 | $ 143,000 |  |  |
Loans and Leases Receivable, Excluded Accrued Interest from Amortized Cost | 8,500,000 |  |  | 8,500,000 |  | 7,800,000 |  |
Recorded Investment | 2,709,000 |  |  | 2,709,000 |  | 2,786,000 |  |
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend | $ 0 |  |  | $ 0 |  | 0 |  |
Loans modified | loan | 0 |  | 0 | 0 | 0 |  |  |
FHLB advances, general debt obligations, pledged collateral | $ 1,500,000,000 |  |  | $ 1,500,000,000 |  | 1,400,000,000 |  |
SBA PPP Loans, 2021 Originations, Outstanding | loan | 19 |  |  | 19 |  |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 612,651,000 |  |  | $ 612,651,000 |  | 1,099,415,000 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,039,120,000 |  |  | 1,039,120,000 |  | 557,853,000 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 496,850,000 |  |  | 496,850,000 |  | 352,013,000 |  |
SBA PPP |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 1,000 | 4,000 | $ 66,000 | 1,000 | $ 66,000 | 19,000 | 87,000 | 69,000
(Credit) provision for loan losses | (3,000) |  | (21,000) | (18,000) | (3,000) | (50,000) |  |
Loans outstanding | 2,509,000 |  |  | 2,509,000 |  | 35,953,000 |  |
Residential real estate |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 8,438,000 | 6,476,000 | 3,205,000 | 8,438,000 | 3,205,000 | 6,133,000 | 3,093,000 | 3,474,000
(Credit) provision for loan losses | 1,978,000 |  | 77,000 | 2,321,000 | (251,000) | 2,644,000 |  |
Non-Accrual Loans | 1,831,000 |  |  | 1,831,000 |  | 2,107,000 |  |
Loans outstanding | 1,517,239,000 |  |  | 1,517,239,000 |  | 1,306,447,000 |  |
Mortgage Loans in Process of Foreclosure, Amount | 607,000 |  |  | 607,000 |  | 888,000 |  |
Commercial |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 5,145,000 | 4,838,000 | 4,342,000 | 5,145,000 | 4,342,000 | 4,183,000 | 5,170,000 | 6,703,000
(Credit) provision for loan losses | 400,000 |  | (636,000) | 1,243,000 | (2,065,000) | (1,941,000) |  |
Non-Accrual Loans | 723,000 |  |  | 723,000 |  | 829,000 |  |
Loans outstanding | 421,220,000 |  |  | 421,220,000 |  | 363,695,000 |  |
Home equity |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 1,796,000 | 1,435,000 | 2,065,000 | 1,796,000 | 2,065,000 | 1,469,000 | 2,176,000 | 2,616,000
(Credit) provision for loan losses | 275,000 |  | (4,000) | 241,000 | (406,000) | (989,000) |  |
Non-Accrual Loans | 741,000 |  |  | 741,000 |  | 1,175,000 |  |
Loans outstanding | 230,865,000 |  |  | 230,865,000 |  | 210,403,000 |  |
Consumer |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 153,000 | $ 106,000 | 289,000 | 153,000 | 289,000 | 79,000 | $ 228,000 | $ 393,000
(Credit) provision for loan losses | 61,000 |  | 63,000 | 153,000 | (59,000) | (235,000) |  |
Non-Accrual Loans | 28,000 |  |  | 28,000 |  | 32,000 |  |
Loans outstanding | 19,480,000 |  |  | 19,480,000 |  | 19,516,000 |  |
Commercial real estate - non-owner-occupied, hospitality-related |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Allowance for credit losses | 768,000 |  |  | 768,000 |  | 5,000,000 |  |
(Credit) provision for loan losses |  |  |  | (4,200,000) |  |  |  |
Fixed Rate Residential Mortgage |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Proceeds from the sale of mortgage loans | 47,000,000 |  | 110,800,000 | 93,700,000 | 303,400,000 |  |  |
Gain on sale of mortgage loans | 1,000,000 |  | 2,900,000 | 2,200,000 | 9,100,000 |  |  |
Loans held for sale, at fair value (book value of $3,380 and $5,786, respectively) | 3,400,000 |  |  | 3,400,000 |  | 5,800,000 |  |
Commercial |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Recorded Investment | 66,000 |  |  | 66,000 |  | 74,000 |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 47,548,000 |  |  | 47,548,000 |  | 91,247,000 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 77,905,000 |  |  | 77,905,000 |  | 44,213,000 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 37,800,000 |  |  | 37,800,000 |  | 45,835,000 |  |
SBA PPP |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 |  |  | 0 |  | 35,634,000 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,507,000 |  |  | 2,507,000 |  | 319,000 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 2,000 |  |  | 2,000 |  | 0 |  |
Nonoperating Income (Expense) | Fixed Rate Residential Mortgage |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Gain on sale of mortgage loans | 73,000 |  | 267,000,000,000 | $ (69,000) | $ (804,000) |  |  |
Unrealized gain (loss) on loans held for sale | (40,000) |  | $ 29,000,000 |  |  |  |  |
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% |  |  |  |
Substandard [Member] | Commercial |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 23,000 |  |  | $ 23,000 |  | 0 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 20,000 |  |  | 20,000 |  | 339,000 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 145,000 |  |  | 145,000 |  | 320,000 |  |
Substandard [Member] | SBA PPP |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 |  |  | 0 |  | 0 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  |  | 0 |  | 0 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  |  | 0 |  | 0 |  |
Pass [Member] | Commercial |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 47,525,000 |  |  | 47,525,000 |  | 91,102,000 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 77,885,000 |  |  | 77,885,000 |  | 43,757,000 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 37,550,000 |  |  | 37,550,000 |  | 44,925,000 |  |
Pass [Member] | SBA PPP |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 |  |  | 0 |  | 35,164,000 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 2,507,000 |  |  | 2,507,000 |  | 319,000 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 2,000 |  |  | 2,000 |  | 0 |  |
Performing Financial Instruments [Member] | Loans |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Recorded Investment | 2,300,000 |  |  | 2,300,000 |  | 2,400,000 |  |
Nonperforming Financial Instruments [Member] | Loans |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Recorded Investment | $ 393,000 |  |  | $ 393,000 |  | $ 394,000 |  |

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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123605502&loc=d3e21310-158488 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123605502&loc=d3e21286-158488 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123605549&loc=d3e21493-158490 + Details
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- Definition Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554 + Details
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- Definition Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554 + Details
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- Definition Describes transactions with related parties, including directors, officers and key employees, including: (1) the aggregate amount of related party loans if they exceed 5 percent of shareholders' equity at the balance sheet date or at any time during the latest fiscal year, (2) an analysis of activity with respect to such loans for the latest fiscal year (i.e., beginning balance, new loans, repayments, other changes and ending balance), (3) the aggregate amount of any significant nonaccrual of interest, past due amounts, or restructured or potential problem (including additional information necessary to understand the impact on the financial statements), and (4) any related party loans not made in the ordinary course of business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(e)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Amount, before valuation allowance, of financing receivable classified as held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124265262&loc=d3e48678-111004 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL49126937-111524 + Details
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