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LOANS AND CREDIT QUALITY - Loan Modifications (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022
Consumer loans | Single family | Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 340	$ 340
% of Total Class of Financing Receivable	0.04%	0.04%
Consumer loans | Single family | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 236	$ 272
% of Total Class of Financing Receivable	0.03%	0.03%
Consumer loans | Single family | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 823
% of Total Class of Financing Receivable	0.00%	0.10%
Consumer loans | Single family | Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 4,048	$ 10,084
% of Total Class of Financing Receivable	0.49%	1.23%
Consumer loans | Single family | Interest Rate Reduction, Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 2,775	$ 6,898
% of Total Class of Financing Receivable	0.34%	0.84%
Consumer loans | Home equity and other | Significant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 70
% of Total Class of Financing Receivable	0.00%	0.02%
Consumer loans | Home equity and other | Significant Payment Delay and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 0	$ 52
% of Total Class of Financing Receivable	0.00%	0.02%
Commercial loans, adjusted for credit analysis | Commercial business | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost Basis at Period End	$ 1,578	$ 1,578
% of Total Class of Financing Receivable	0.40%	0.40%

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- Definition

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+ References

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- Definition

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+ References

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- Definition

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+ References

No definition available.

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