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LOANS AND CREDIT QUALITY - Loans on Nonaccrual with no related allowance (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | $ 7,160 | $ 6,125
Nonaccrual | 11,846 | 12,201
Commercial loans |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 4,783 | 4,778
Nonaccrual | 7,535 | 8,591
Commercial loans | Owner occupied CRE |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 3,539 | 3,568
Nonaccrual | 3,539 | 3,568
Commercial loans | Commercial business |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 1,244 | 1,210
Nonaccrual | 3,996 | 5,023
Consumer loans |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 2,377 | 1,347
Nonaccrual | 4,311 | 3,610
Consumer loans | Single family |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 2,325 | 1,324
Nonaccrual | 2,918 | 2,802
Consumer loans | Home equity and other |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 52 | 23
Nonaccrual | $ 1,393 | $ 808

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