Investment Securities (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) security $ / shares shares	Dec. 31, 2019 USD ($) security shares	Sep. 30, 2020 USD ($)	Dec. 31, 2018 USD ($) shares
Schedule of Available-for-sale Securities
Impairment charges to securities	$ 0	$ 0
Common stock, shares outstanding | shares	2,842,040	2,827,473
Total Unrealized Loss	$ 336,000	$ 344,000
Proceeds from sales of available for sale debt securities		21,400,000
Realized gain (loss) on sale	6,000,000	3,000
Interest rate swap
Schedule of Available-for-sale Securities
Investment securities pledged as collateral	$ 900,000	800,000
Maryland Financial Bank
Schedule of Available-for-sale Securities
Liquidating distributions (per share) | $ / shares	$ 0.53
Common stock, shares outstanding | shares				5,000
Common stock, value outstanding		2,650,000		$ 5,000,000
Total Unrealized Loss		$ 2,350,000	$ 25,000	$ 25,000
Private Label Mortgage-Backed securities
Schedule of Available-for-sale Securities
Number of investment securities portfolio held | security	0	0
Collateralized mortgage obligations
Schedule of Available-for-sale Securities
Number of investment securities portfolio held | security	0	0
Number of securities continuous unrealized loss position more than twelve months | security	4
Total Unrealized Loss	$ 14,000	$ 187,000
Agency mortgage-backed securities
Schedule of Available-for-sale Securities
Number of securities continuous unrealized loss position more than twelve months | security	2
Total Unrealized Loss	$ 10,000	135,000
Municipal securities
Schedule of Available-for-sale Securities
Number of securities continuous unrealized loss position more than twelve months | security	1
Total Unrealized Loss	$ 2,000	17,000
U.S. Government agency securities
Schedule of Available-for-sale Securities
Number of securities continuous unrealized loss position more than twelve months | security	42
Total Unrealized Loss	$ 310,000	$ 5,000