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Securities (Details 1) $ in Thousands	Sep. 30, 2017 USD ($)
Amortized cost and fair value of the debt securities maturity
Amortized Cost, Within one year	$ 16,357
Amortized Cost, One to five years	50,636
Amortized Cost, Five to ten years	111,761
Amortized Cost, Beyond ten years	13,418
Amortized Cost, Mortgage-backed, collateralized mortgage obligations and Small Business Administration securities	201,593
Amortized Cost, Total	393,765
Fair Value, Within one year	16,397
Fair Value, One to five years	51,389
Fair Value, Five to ten years	113,200
Fair Value, Beyond ten years	13,390
Fair Value, Mortgage-backed, collateralized mortgage obligations and Small Business Administration securities	200,477
Fair Value, Total	$ 394,853

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