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Fair Value Measurements and Fair Values of Financial Instruments (Carrying Values and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Debt securities available for sale | $ 101,717 | $ 87,769
Equity investments | 9,472 | 9,093
Carrying Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and cash equivalents | 317,282 | 279,523
Interest-earning time deposits | 735 | 735
Debt securities available for sale | 101,717 | 87,769
Equity investments | 9,472 | 9,093
Loans held for sale |  | 1,287
Loans receivable, net | 2,996,259 | 3,279,708
FHLB of New York stock, at cost | 24,272 | 24,917
Accrued interest receivable | 15,176 | 16,072
Deposits | 2,750,858 | 2,979,080
Debt | 455,361 | 472,811
Subordinated debentures | 42,961 | 37,624
Accrued interest payable | 5,195 | 5,777
Fair Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Cash and cash equivalents | 317,282 | 279,523
Interest-earning time deposits | 735 | 735
Debt securities available for sale | 101,717 | 87,769
Equity investments | 9,472 | 9,093
Loans held for sale |  | 1,287
Loans receivable, net | 2,900,892 | 3,112,980
FHLB of New York stock, at cost | 24,272 | 24,917
Accrued interest receivable | 15,176 | 16,072
Deposits | 2,751,625 | 2,978,654
Debt | 456,290 | 472,184
Subordinated debentures | 41,594 | 39,299
Accrued interest payable | 5,195 | 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 | 317,282 | 279,523
Equity investments | 9,472 | 9,093
Deposits | 1,721,602 | 2,120,514
(Level 2) Significant Other Observable Inputs [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest-earning time deposits | 735 | 735
Debt securities available for sale | 101,717 | 87,769
Loans held for sale |  | 1,287
FHLB of New York stock, at cost | 24,272 | 24,917
Accrued interest receivable | 15,176 | 16,072
Deposits | 1,030,023 | 858,140
Debt | 456,290 | 472,184
Subordinated debentures | 41,594 | 39,299
Accrued interest payable | 5,195 | 5,777
(Level 3) Significant Unobservable Inputs [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans receivable, net | $ 2,900,892 | $ 3,112,980

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