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Consolidated Statement of Financial Condition (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Consolidated Statement of Financial Condition [Abstract]    
Held-to-maturity securities, fair value $ 76,370 $ 100,656
Common stock, Par value $ 0.01 $ 0.01
Common Stock, Shares Authorized 25,000,000 25,000,000
Common Stock, Shares, Issued 6,988,998 7,110,022
Common Stock, Shares, Outstanding 6,988,998 7,110,022