Loans and Allowance for Credit Losses - Non-Accrual at Amortized Cost (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	$ 23,659	$ 29,942
Non-accrual amortized cost end of the reporting period	33,997	23,659
Non-accrual with no related allowance	22,358	15,133
Interest income recognized	11	25
Loans ninety days or more past due and still accruing		1,463
Multi-family Residential Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	3,640	3,547
Non-accrual amortized cost end of the reporting period	11,707	3,640
Non-accrual with no related allowance	6,476	3,640
Interest income recognized	5	2
Loans ninety days or more past due and still accruing		1,463
Commercial Real Estate
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period		254
Non-accrual amortized cost end of the reporting period	6,376
Non-accrual with no related allowance	6,376
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	1,005	1,045
Non-accrual amortized cost end of the reporting period	117	1,005
Non-accrual with no related allowance	117	1,005
Interest income recognized	1	3
One-To-Four Family - Residential Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	4,670	3,953
Non-accrual amortized cost end of the reporting period	812	4,670
Non-accrual with no related allowance	812	4,670
Interest income recognized	2	3
Small Business Administration Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	2,576	950
Non-accrual amortized cost end of the reporting period	2,531	2,576
Non-accrual with no related allowance	2,531	2,576
Taxi Medallion Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	11,768	20,193
Non-accrual amortized cost end of the reporting period		11,768
Non-accrual with no related allowance		3,242
Interest income recognized		17
Commercial Business and Other Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual
Non-accrual amortized cost beginning of the reporting period	11,768
Non-accrual amortized cost end of the reporting period	12,454	$ 11,768
Non-accrual with no related allowance	6,046
Interest income recognized	$ 3

Amount of interest income on financing receivable excluding accrued interest on nonaccrual status.

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- Definition

Amortized cost excluding accrued interest, of financing receivable 90 days or more past due and still accruing. 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 (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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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

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- References

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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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