Investment Securities - Summary of Contractual Maturities (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Amortized Cost
Within one year	$ 300		$ 300
One to five years	1,839		1,839
Five to ten years	5,822		5,822
Greater than ten years	2,346		2,346
Residential mortgage-backed securities, residential collateralized mortgage obligations and SBA loan pool securities	138,331		138,331
Amortized Cost	148,638		148,638		$ 123,185
Fair Value
Within one year	300		300
One to five years	1,842		1,842
Five to ten years	5,634		5,634
Greater than ten years	2,309		2,309
Residential mortgage-backed securities, residential collateralized mortgage obligations and SBA loan pool securities	128,982		128,982
Fair Value	139,067		139,067		$ 123,198
Proceeds from sale of debt securities, available-for-sale	$ 0	$ 0	$ 0	$ 0

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