CONSOLIDATED STATEMENT OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for Loan Losses	$ 13,780	$ 9,867
Preferred stock, share authorized (in shares)	5,000,000	5,000,000
Common stock, par value (in dollars per share)	$ 0.4167	$ 0.4167
Common stock, shares authorized (in shares)	35,000,000	35,000,000
Common stock, shares issued (in shares)	5,680,993	5,680,993
Common stock, shares outstanding (in shares)	5,398,712	5,463,828
Treasury stock, at cost (in shares)	282,281	217,165