Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Loans, net of allowance for loan losses	$ 11,697	$ 12,877
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, authorized shares	2,000,000	2,000,000
Preferred stock, shares issued	28,750	28,750
Preferred stock, shares outstanding	28,750	28,750
Common stock, par value	$ 4.00	$ 4.00
Common stock, authorized shares	10,000,000	10,000,000
Common stock, shares issued	7,595,781	7,443,842
Common stock, shares outstanding	7,595,781	7,443,842
Common stock, non-vested shares	229,257	161,435