Securities - Schedule of Securities With Unrealized Losses Aggregated by Length of Time in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less Than 12 Months	$ 47,042	$ 16,682
Unrealized Losses, Less Than 12 Months	(587)	(57)
Total Fair Value	47,042	16,682
Total Unrealized Losses	(587)	(57)
Mortgage-backed Securities, Residential
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less Than 12 Months	12,426	3,089
Unrealized Losses, Less Than 12 Months	(120)	(7)
Total Fair Value	12,426	3,089
Total Unrealized Losses	(120)	(7)
Collateralized Mortgage Obligations, Residential
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less Than 12 Months	34,616	13,593
Unrealized Losses, Less Than 12 Months	(467)	(50)
Total Fair Value	34,616	13,593
Total Unrealized Losses	$ (467)	$ (50)