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Investment Securities - Total investment securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Contractual maturities of securities
Available for Sale, Cost Basis, Within 1 year	$ 2,726
Available for Sale, Cost Basis, After 1 year but within 5 years	37,080
Available for Sale, Cost Basis, After 5 years but within 10 years	50,104
Available for Sale, Cost Basis, Over 10 years	80,620
Available for Sale, Cost Basis, Total	170,530	$ 161,416
Available for Sale, Fair Value, Within 1 year	2,730
Available for Sale, Fair Value, After 1 year but within 5 years	36,965
Available for Sale, Fair Value, After 5 years but within 10 years	49,206
Available for Sale, Fair Value, Over 10 years	75,966
Available for Sale, Fair Value, Total	164,867	163,171
Held to Maturity, Cost Basis, Within 1 year	200
Held to Maturity, Cost Basis, After 1 year but within 5 years	12,178
Held to Maturity, Cost Basis, After 5 years but within 10 years	25,358
Held to Maturity, Cost Basis, Over 10 years	20,683
Held to Maturity, Cost Basis, Total	58,419	53,751
Held to Maturity, Fair Value, Within 1 year	203
Held to Maturity, Fair Value, After 1 year but within 5 years	12,205
Held to Maturity, Fair Value, After 5 years but within 10 years	25,146
Held to Maturity, Fair Value, Over 10 years	19,567
Held to Maturity, Fair Value, Total	$ 57,121	$ 55,516

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