Investments (Gross Unrealized Losses and Fair Values of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value	$ 13,153	$ 66,623
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses	1,290	552
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value	10,940	19,787
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses	3,946	3,894
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value	3,505	26,900
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss	21	237
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value	1,919	0
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss	5	0
US government agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value		23,929
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses		129
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value		0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses		0
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value		0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses		0
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value		8,051
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses		220
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value	3,505	11,085
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss	21	98
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value	1,919	0
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss	5	0
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value		25,858
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses		196
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value		0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses		0
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value		9,518
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss		17
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value		0
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss		0
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value		5,299
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses		123
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value		0
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses		0
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value		6,297
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss		122
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value		0
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss		0
Obligations of states and political subdivisions [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value	267	11,537
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses	1	104
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value	3,596	4,048
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses	63	119
Collateralized debt obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value	12,886	0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses	1,289	0
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value	7,344	7,688
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses	$ 3,883	$ 3,555