Investment Securities (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Gross realized gains and losses
Gross realized gains	$ 819	$ 1,046
Gross realized losses	426	60
U.S. Government and agency securities
Gross realized gains and losses
Gross realized losses	31	0
State and political securities
Gross realized gains and losses
Gross realized gains	345	579
Gross realized losses	320	60
Other debt securities
Gross realized gains and losses
Gross realized gains	307	121
Gross realized losses	75	0
Financial institution equity securities
Gross realized gains and losses
Gross realized gains	112	130
Other equity securities
Gross realized gains and losses
Gross realized gains	$ 55	$ 216