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Investment Securities - Summary of Contractual Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Securities available for sale
Amortized Cost, Due in 1 year or less	$ 4	$ 0	$ 0
Fair Value (Estimated), Due in 1 year or less	4	0	0
Amortized Cost, Due in 1 to 5 years	3,640	5,004	6,285
Fair Value (Estimated), Due in 1 to 5 years	3,427	5,173	6,529
Amortized Cost, Due in 5 to 10 years	18,064	52,782	37,971
Fair Value (Estimated), Due in 5 to 10 years	14,436	53,057	38,400
Amortized Cost, Due after 10 years	321,891	264,955	265,762
Fair Value (Estimated), Due after 10 years	265,401	262,336	264,295
Amortized Cost	343,599	322,741	310,018
Fair Value (Estimated)	283,268	320,566	309,224
Securities to be held to maturity
Amortized Cost, Due in 1 year or less	1,346	2,515	3,788
Fair Value (Estimated), Due in 1 year or less	1,343	2,521	3,763
Amortized Cost, Due in 1 to 5 years	15,235	17,624	18,616
Fair Value (Estimated), Due in 1 to 5 years	14,644	18,338	19,426
Amortized Cost, Due in 5 to 10 years	75,492	174,982	171,039
Fair Value (Estimated), Due in 5 to 10 years	68,704	180,081	176,007
Amortized Cost, Due after 10 years	289,833	174,919	182,256
Fair Value (Estimated), Due after 10 years	229,105	174,387	180,601
Amortized Cost	381,906	370,040	375,699
Securities to be held to maturity, Fair Value (Estimated)	$ 313,796	$ 375,327	$ 379,797

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