Consolidated Statements of Financial Condition (Parenthetical) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Securities held to maturity, fair value	$ 442,000	$ 441,000
Serial preferred stock, par value	$ 0.01	$ 0.01
Serial preferred stock, shares authorized	1,000,000	1,000,000
Serial preferred stock, shares issued
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	793,500	793,500