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2. Investment securities, Contractual Maturity (Details) $ in Thousands	Jun. 30, 2018 USD ($)
Amortized Cost
Due within one year	$ 22,613
Due from one to five years	97,045
Due from five to ten years	37,351
Due after ten years	5,449
Mortgage-backed securities	46,213
Trust preferred securities	250
Total	208,921
Estimated Fair Value
Due within one year	22,809
Due from one to five years	98,725
Due from five to ten years	37,068
Due after ten years	5,482
Mortgage-backed securities	45,721
Trust preferred securities	250
Total	$ 210,055

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