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Securities (Details 1) $ in Thousands	Mar. 31, 2017 USD ($)
Amortized cost and fair value of the debt securities maturity
Amortized Cost, Within one year	$ 11,743
Amortized Cost, One to five years	52,051
Amortized Cost, Five to ten years	88,905
Amortized Cost, Beyond ten years	20,289
Amortized Cost, Mortgage-backed, collateralized mortgage obligations and Small Business Administration securities	207,899
Amortized Cost, Total	380,887
Fair Value, Within one year	11,754
Fair Value, One to five years	52,432
Fair Value, Five to ten years	87,286
Fair Value, Beyond ten years	20,016
Fair Value, Mortgage-backed, collateralized mortgage obligations and Small Business Administration securities	205,230
Fair Value, Total	$ 376,718

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