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Securities - Schedule of Amortized Cost and Fair Value by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Available for Sale Amortized Cost
1 year or less	$ 46,148
Over 1 year through 5 years	42,239
Over 5 years through 10 years	133,942
Over 10 years	43,410
Without single maturity date	119,141
Available for Sale, Amortized Cost	384,880	$ 331,745
Available for Sale Fair Value
1 year or less	46,457
Over 1 year through 5 years	42,888
Over 5 years through 10 years	132,262
Over 10 years	43,410
Without single maturity date	120,817
Available for Sale, Fair Value	385,834	337,718	$ 257,603
Held-to-Maturity Amortized Cost
1 year or less	0
Over 1 year through 5 years	0
Over 5 years through 10 years	0
Over 10 years	0
Without single maturity date	8,139
Held to Maturity, Amortized Cost	8,139	10,294	14,929
Held-to-Maturity Fair Value
1 year or less	0
Over 1 year through 5 years	0
Over 5 years through 10 years	0
Over 10 years	0
Without single maturity date	8,452
Held to Maturity, Fair Value	8,452	10,768	$ 15,463
Mortgage-backed securities, residential
Available for Sale Amortized Cost
Available for Sale, Amortized Cost	119,141	105,327
Available for Sale Fair Value
Available for Sale, Fair Value	120,817	108,822
Held-to-Maturity Amortized Cost
Held to Maturity, Amortized Cost	8,139	10,294
Held-to-Maturity Fair Value
Held to Maturity, Fair Value	$ 8,452	$ 10,768

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