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INVESTMENT SECURITIES - Pledged to Secure Borrowings and Public Deposits (Details) - Asset Pledged as Collateral without Right - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Total securities pledged as collateral	$ 222,742	$ 211,411
Deposits
Debt Securities, Available-for-sale [Line Items]
Washington, Oregon and California to secure public deposits	220,689	206,153
Notes Payable, Other Payables
Debt Securities, Available-for-sale [Line Items]
Other securities pledged	$ 2,053	$ 5,258

X

- Definition

Pledged Assets Not Separately Reported Securities Pledged For State and Local Governments.

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No definition available.

+ Details

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X

- Definition

Pledged Assets Separately Reported Other Securities Pledged

+ References

No definition available.

+ Details

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X

- Definition

Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

+ References

No definition available.

+ Details

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X

- Definition

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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No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

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