Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Consolidated Statements of Financial Condition [Abstract]
Preferred stock, no par value	$ 0	$ 0
Preferred stock, authorized	500,000	500,000
Preferred Stock, Shares Issued	0	0
Common Stock, Par or Stated Value Per Share	$ 1.00	$ 1.00
Common Stock, Shares Authorized	20,000,000	20,000,000
Common Stock, Shares Issued	5,151,279	5,151,279
Common Stock, Shares, Outstanding	5,000,026	5,025,441
Treasury Stock, Shares	151,253	125,838