Nature of Business and Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands		3 Months Ended		12 Months Ended
	Jul. 10, 2020 BranchOffice MortgageOffice	Mar. 31, 2022 USD ($) Segment BranchLease	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	13
Number of branch mortgage loan offices | MortgageOffice	4
Provision for loan losses (Note 5) | $		$ 1,258	$ 686	$ 2,717
Minimum collection percentage of securities required to be considered as a maturity		85.00%
Period of historical loss experience to estimate allowance for loan losses		36 months
Percentage of largest amount of tax benefits likely to realize		50.00%
Percentage of employee discretionary matching, profit sharing and safe harbor contributions, maximum		4.00%
Number of business segment | Segment		2
Number of leased branches | BranchLease		16
Scenario Forecast
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Right of use asset | $					$ 34,300
Operating lease liability | $					$ 35,500
Construction Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Provision for loan losses (Note 5) | $		$ (7)	107	204
Commercial Real Estate Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Period on which interest rate is adjusted		5 years
Commercial Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Provision for loan losses (Note 5) | $		$ 55	$ (10)	$ (32)
Minimum
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Percentage of loan to value ratio		65.00%
Minimum | Construction Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term		6 months
Minimum | Commercial Real Estate Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan amortization period		15 years
Balloon payments period of loan		10 years
Minimum | Commercial Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term		5 years
Maximum
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Percentage of loan to value ratio		90.00%
Maximum | Construction Loans
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term		2 years
Maximum | Commercial Real Estate Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Percentage of loan to value ratio		75.00%
Loan amortization period		30 years
Balloon payments period of loan		15 years
Maximum | Commercial Portfolio Segment
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Loan term		7 years
COVID-19
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Provision for loan losses (Note 5) | $		$ 1,300
Mortgage World Bankers Inc
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Business Acquisition, Effective Date of Acquisition	Jul. 10, 2020
Business Acquisition, Name of Acquired Entity	Mortgage World
Bronx
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	4
Manhattan
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	2
Queens
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	3
Number of branch mortgage loan offices | MortgageOffice	2
Brooklyn
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	3
Number of branch mortgage loan offices | MortgageOffice	1
Union City
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch banking offices | BranchOffice	1
New York and Bergenfield
Nature Of Business And Summary Of Significant Accounting Policies Table Of Statement [Line Items]
Number of branch mortgage loan offices | MortgageOffice	1