LOANS AND CREDIT QUALITY (Narrative) (Details)	12 Months Ended
Dec. 31, 2024 USD ($) loan segment	Dec. 31, 2023 USD ($) loan	Dec. 31, 2022 USD ($)
LOANS AND LEASES
Number of loans sold in period \| loan	1
Amortized cost of loan sold	$ 9,700,000
Proceeds from sales of loans originated for investment	9,397,000	$ 9,629,000	$ 0
Loss on sale of loan	$ 300,000
Number of loans transferred to the loans held for sale category \| loan	1
Net transfer of portfolio loans to loans held for sale	$ 9,800,000	0
Proceeds from sale of one loan held-for-sale	9,600,000
Gain (loss) on sales of loans	(200,000)
Related party balance	$ 33,000,000.0	$ 33,700,000
Mortgage loans foreclosure, number \| loan	0	0
Interest income	$ 100,000	$ 100,000	1,600,000
Additional interest income	600,000	300,000	200,000
Interest income collected and recognized on charged-off loans	$ 200,000	400,000	$ 300,000
Number of TDRs included in nonperforming assets \| segment	0
Accruing Loans 90+ Days Past Due
LOANS AND LEASES
Amount of TDRs still accruing interest	$ 0
Nonperforming Financial Instruments
LOANS AND LEASES
Amount of TDRs still accruing interest	1,900,000	2,100,000
Real Estate \| Residential mortgage
LOANS AND LEASES
Loans in foreclosure	3,900,000	2,300,000
Residential portfolio segment \| Nonperforming Financial Instruments \| HAWAII
LOANS AND LEASES
Combined principal balance of troubled debt restructurings included in nonperforming assets	$ 800,000	$ 900,000

Financing Receivable, Excluding Accrued Interest, Additional Interest Income

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Financing Receivable, Excluding Accrued Interest, Interest Income

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Financing Receivable, Excluding Accrued Interest, Sold In Period

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Recorded investment in financing receivables that have been modified by troubled debt restructurings and that are on accrual status as of the balance sheet date.

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Loan and Lease, Transfer from Held-in-Portfolio to Held-for-Sale, Number of Loans

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Represents the amount of interest income collected and recognized on charged-off loans during the period.

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Mortgage Loans on Real Estate, Foreclosures, Number

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount excluding accrued interest, of decrease in financing receivable from sale. Excludes net investment in lease.

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Number of financing receivables that have been modified by troubled debt restructurings.

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Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty.

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Amount of gain (loss) on sale of financing receivable.

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The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

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For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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The cash inflow associated with the sale of receivables arising from the financing of goods and services.

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The cash inflow resulting from the sale of loans (other than mortgage loans) that are held with the intention to resell in the near future.

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Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions.

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