Securities - Continuous Unrealized Loss Position - Additional information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) security	Dec. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)
Schedule Of Available For Sale Securities
Securities held to maturity, fair value | $	$ 272	$ 274	$ 300
Securities of state and local municipalities - tax exempt
Schedule Of Available For Sale Securities
Securities held to maturity, fair value | $	$ 272	$ 274
Corporate bonds | BB
Schedule Of Available For Sale Securities
Number of investment securities	1
Corporate bonds | BBB+
Schedule Of Available For Sale Securities
Number of investment securities	1
Corporate bonds | No rating
Schedule Of Available For Sale Securities
Number of investment securities	9