Investment Securities - Amortized Cost and Fair Value of Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized Cost
Due within one year	$ 10
Due after one year through five years	610
Due after five years through ten years	7,223
Due after ten years	5,178
Amortized cost	13,021	$ 19,258
Fair Value
Due within one year	9
Due after one year through five years	611
Due after five years through ten years	7,388
Due after ten years	5,343
Total available for sale	13,351	19,882
Amortized Cost
Due within one year	0
Due after one year through five years	0
Due after five years through ten years	1,283
Due after ten years	8,635
Amortized cost	9,918	1,224
Fair Value
Due within one year	0
Due after one year through five years	0
Due after five years through ten years	1,524
Due after ten years	8,501
Total held to maturity	$ 10,025	$ 1,530