Investment Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) Security	Dec. 31, 2014 USD ($)
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 153,730	$ 81,467
Less than 12 months unrealized loss	1,672	154
12 months or more fair value	7,277	33,574
12 months or more unrealized loss	142	506
Total fair value	161,007	115,041
Total unrealized loss	$ 1,814	660
Less than 12 months, number of positions | Security	24
12 months or more, number of positions | Security	1
Number of investment securities held | Security	254
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 839	849
Less than 12 months unrealized loss	1	5
12 months or more fair value	0	876
12 months or more unrealized loss	0	5
Total fair value	839	1,725
Total unrealized loss	1	10
Government Agency & Government Sponsored Entities [Member]
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	29,944	66,980
Less than 12 months unrealized loss	419	3
12 months or more fair value	0	0
12 months or more unrealized loss	0	0
Total fair value	29,944	66,980
Total unrealized loss	$ 419	3
Less than 12 months, number of positions | Security	3
12 months or more, number of positions | Security	0
US Treasury Notes Securities [Member]
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 44,887
Less than 12 months unrealized loss	164
12 months or more fair value	0
12 months or more unrealized loss	0
Total fair value	44,887
Total unrealized loss	$ 164
Less than 12 months, number of positions | Security	8
12 months or more, number of positions | Security	0
Mortgage Backed Securities [Member]
Available-for-sale Securities in Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 78,899	14,487
Less than 12 months unrealized loss	1,089	151
12 months or more fair value	7,277	33,574
12 months or more unrealized loss	142	506
Total fair value	86,176	48,061
Total unrealized loss	$ 1,231	657
Less than 12 months, number of positions | Security	11
12 months or more, number of positions | Security	1
Obligations of States and Political Subdivisions [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months fair value	$ 839	849
Less than 12 months unrealized loss	1	5
12 months or more fair value	0	876
12 months or more unrealized loss	0	5
Total fair value	839	1,725
Total unrealized loss	$ 1	$ 10
Less than 12 months, number of positions | Security	2
12 months or more, number of positions | Security	0
Municipal Bonds [Member]
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Percentage of portfolio rated at either issue or issuer level	98.00%
Percentage of portfolio not rated	3.00%