Consolidated Statements of Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
ASSETS:
Cash and due from banks including restricted cash	$ 1,600	$ 1,600
Held-to-maturity securities at fair value	174,558	162,805
Restricted cash	$ 0	$ 0
Voting Common Stock [Member]
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	25,000,000	25,000,000
Common stock, shares issued (in shares)	4,618,896	4,603,184
Common stock, shares outstanding (in shares)	4,618,896	4,603,184
Non-Voting Common Stock [Member]
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,505,283	1,505,283
Common stock, shares issued (in shares)	1,380,283	1,380,283
Common stock, shares outstanding (in shares)	1,380,283	1,380,283