Consolidated Statement of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statement of Financial Condition [Abstract]
Held-to-maturity securities, fair value	$ 77,612	$ 100,656
Common stock, Par value	$ 0.01	$ 0.01
Common Stock, Shares Authorized	25,000,000	25,000,000
Common Stock, Shares, Issued	6,992,911	7,110,022
Common Stock, Shares, Outstanding	6,992,911	7,110,022