Loans - Non-Accrual Loans, Excluding PCD Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	$ 9,570	$ 9,813
Unpaid Principal Balance	14,181	10,851
With No Related Allowance	5,016	5,186
Real estate loans: \| Multifamily
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	3,073	3,285
Unpaid Principal Balance	3,360	3,294
With No Related Allowance	1,917	2,050
Real estate loans: \| Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	5,435	5,184
Unpaid Principal Balance	5,890	5,639
With No Related Allowance	3,019	3,069
Real estate loans: \| One-to-four family residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	106	118
Unpaid Principal Balance	106	118
With No Related Allowance	0	0
Real estate loans: \| Home equity and lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	98	262
Unpaid Principal Balance	348	512
With No Related Allowance	0	0
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	848	964
Unpaid Principal Balance	4,468	1,288
With No Related Allowance	80	$ 67
Other loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Recorded Investment	10
Unpaid Principal Balance	9
With No Related Allowance	$ 0

Financing Receivable, Excluding Accrued Interest, Nonaccrual, Unpaid Principal Balance

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- 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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

+ Details

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

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