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Fair Value Measurements and Fair Value of Financial Instruments (Carrying Values and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	$ 85,186	$ 99,756
Equity investments	25,187	17,717
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	411,629	261,229
Interest-earning time deposits	735	735
Debt securities available for sale	85,186	99,756
Equity investments	25,187	17,717
Loans held for sale	952	3,530
Loans receivable, net	2,304,942	2,295,021
FHLB of New York stock, at cost	6,084	11,324
Accrued interest receivable	9,183	12,924
Deposits	2,561,402	2,318,050
Debt	71,711	191,161
Subordinated debentures	37,275	37,042
Accrued interest payable	1,051	1,463
Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	411,629	261,229
Interest-earning time deposits	735	735
Debt securities available for sale	85,186	99,756
Equity investments	25,187	17,717
Loans held for sale	952	3,530
Loans receivable, net	2,313,204	2,309,118
FHLB of New York stock, at cost	6,084	11,324
Accrued interest receivable	9,183	12,924
Deposits	2,520,191	2,323,561
Debt	71,214	194,899
Subordinated debentures	45,020	37,252
Accrued interest payable	1,051	1,463
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	411,629	261,229
Equity investments	25,187	17,717
Deposits	1,881,121	1,627,871
Significant Other Observable Inputs (Level 2) [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	85,186	99,756
Loans held for sale	952	3,530
FHLB of New York stock, at cost	6,084	11,324
Accrued interest receivable	9,183	12,924
Deposits	639,070	695,690
Debt	71,214	194,899
Subordinated debentures	45,020	37,252
Accrued interest payable	1,051	1,463
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, net	$ 2,313,204	$ 2,309,118

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

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