Securities (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Amortized cost and fair value of the debt securities maturity
Amortized Cost, Within one year	$ 12,900
Amortized Cost, One to five years	78,006
Amortized Cost, Five to ten years	44,660
Amortized Cost, Beyond ten years	11,128
Amortized Cost, Mortgage-backed, collateralized mortgage obligations and small business administration securities	285,263
Amortized Cost, Total	431,957
Fair Value, Within one year	13,033
Fair Value, One to five years	78,617
Fair Value, Five to ten years	44,493
Fair Value, Beyond ten years	10,756
Fair Value, Mortgage-backed, collateralized mortgage obligations and small business administration securities	280,530
Fair Value, Total	$ 427,429