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Fair Values of Financial Instruments (Carrying Values and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt securities available for sale | $ 86,966 | $ 87,769
Carrying Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and cash equivalents | 352,448 | 279,523
Interest-earning time deposits | 735 | 735
Debt securities available for sale | 86,966 | 87,769
Equity investments | 9,223 | 9,093
Loans held for sale |  | 1,287
Loans receivable, net | 3,226,877 | 3,279,708
FHLB of New York stock, at cost | 24,917 | 24,917
Accrued interest receivable | 17,442 | 16,072
Deposits | 2,991,659 | 2,979,080
Debt | 472,949 | 472,811
Subordinated debentures | 37,624 | 37,624
Accrued interest payable | 5,650 | 5,777
Fair Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and cash equivalents | 352,448 | 279,523
Interest-earning time deposits | 735 | 735
Debt securities available for sale | 86,966 | 87,769
Equity investments | 9,223 | 9,093
Loans held for sale |  | 1,287
Loans receivable, net | 3,077,460 | 3,112,980
FHLB of New York stock, at cost | 24,917 | 24,917
Accrued interest receivable | 17,442 | 16,072
Deposits | 2,990,333 | 2,978,654
Debt | 474,103 | 472,184
Subordinated debentures | 34,958 | 39,299
Accrued interest payable | 5,650 | 5,777
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and cash equivalents | 352,448 | 279,523
Interest-earning time deposits |  |
Debt securities available for sale |  |
Equity investments | 9,223 | 9,093
Loans held for sale |  |
Loans receivable, net |  |
FHLB of New York stock, at cost |  |
Accrued interest receivable |  |
Deposits | 2,151,134 | 2,120,514
Debt |  |
Subordinated debentures |  |
Accrued interest payable |  |
(Level 2) Significant Other Observable Inputs [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and cash equivalents |  |
Interest-earning time deposits | 735 | 735
Debt securities available for sale | 86,966 | 87,769
Equity investments |  |
Loans held for sale |  | 1,287
Loans receivable, net |  |
FHLB of New York stock, at cost | 24,917 | 24,917
Accrued interest receivable | 17,442 | 16,072
Deposits | 839,198 | 858,140
Debt | 474,103 | 472,184
Subordinated debentures | 34,958 | 39,299
Accrued interest payable | 5,650 | 5,777
(Level 3) Significant Unobservable Inputs [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans receivable, net | $ 3,077,460 | $ 3,112,980

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