Investment Securities, Proceeds From Sales (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Proceeds from sales and calls of securities [Abstract]
Gross proceeds	$ 61,335	$ 130,174	$ 81,390
Gross gains	275	1,204	1,208
Gross losses	$ 0	$ 1,114	$ 1,437