Investment Securities (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) Investment	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) Investment
Investment Securities (Textual)
Sale of investment securities	$ 12,200
Gain on sale of investment securities	$ 307	$ 259
Number of investments, Less than 12 months | Investment	4		43
Fair Market Value, 12 months or longer	$ 8,200
Number of investments, 12 months or longer | Investment	6		5
Fair Market Value, less than 12 months	$ 6,900
Securities pledged as collateral for repurchase agreements from brokers	22,700		$ 21,300
Securities pledged to secure client deposit	$ 25,100		$ 11,100