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LOANS AND CREDIT QUALITY - Loans on Nonaccrual with no related allowance (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	$ 10,235	$ 10,197
Nonaccrual	20,835	20,722
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	7,398	8,022
Nonaccrual	13,800	14,105
Commercial loans | Owner occupied commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	4,910	4,922
Nonaccrual	4,910	4,922
Commercial loans | Commercial business
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	2,488	3,100
Nonaccrual	8,890	9,183
Consumer loans
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	2,837	2,175
Nonaccrual	7,035	6,617
Consumer loans | Single family
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	1,929	2,173
Consumer loans | Home equity, adjusted for credit analysis
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual with no related ACL	$ 908	$ 2

X

- Definition

Amount of financing receivable on nonaccrual status with no allowance for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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+ References

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Amount of financing receivable on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)

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