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Securities (Details Textual) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Securities (Textual)    
Fair value of securities pledged as collateral $ 75,600 $ 42,600
Securities delivered for repurchase agreements 20,700 15,800
Gross gains realized from sales of available-for-sale securities 200  
Tax expense for net security gains 70  
Total fair value of investments $ 1,792 $ 37,245
Fair value as a percentage of available-for-sale investment portfolio 2.00% 34.00%
Unrealized loss on the securities portfolio $ 20 $ 430