Investment Securities (Unrealized Losses on Available for Sale and Held to Maturity Securities) (Details) $ in Thousands	Jun. 30, 2016 USD ($) security	Dec. 31, 2015 USD ($) security
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	21	67
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 11,981	$ 44,846
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	(122)	(436)
Securities in a continuous unrealized loss position, 12 months or longer, fair value	14,116	13,606
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	(525)	(471)
Securities in a continuous unrealized loss position, fair value	26,097	58,452
Securities in a continuous unrealized loss position, unrealized losses	$ (647)	$ (907)
U. S. Treasury securities and obligations of U.S. Government sponsored corporations (“GSE”) and agencies [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	0	3
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 0	$ 5,481
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	0	(42)
Securities in a continuous unrealized loss position, 12 months or longer, fair value	0	0
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	0	0
Securities in a continuous unrealized loss position, fair value	0	5,481
Securities in a continuous unrealized loss position, unrealized losses	$ 0	$ (42)
Residential collateralized mortgage obligations - GSE [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	2	2
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 5,407	$ 5,894
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	(34)	(36)
Securities in a continuous unrealized loss position, 12 months or longer, fair value	0	0
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	0	0
Securities in a continuous unrealized loss position, fair value	5,407	5,894
Securities in a continuous unrealized loss position, unrealized losses	$ (34)	$ (36)
Residential mortgage backed securities - GSE [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	3	19
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 0	$ 20,911
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	0	(175)
Securities in a continuous unrealized loss position, 12 months or longer, fair value	3,593	3,980
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	(21)	(56)
Securities in a continuous unrealized loss position, fair value	3,593	24,891
Securities in a continuous unrealized loss position, unrealized losses	$ (21)	$ (231)
Obligations of state and political subdivisions [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	4	32
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 1,396	$ 2,760
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	(1)	(19)
Securities in a continuous unrealized loss position, 12 months or longer, fair value	0	6,465
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	0	(49)
Securities in a continuous unrealized loss position, fair value	1,396	9,225
Securities in a continuous unrealized loss position, unrealized losses	$ (1)	$ (68)
Trust preferred debt securities – single issuer [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	4	4
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 0	$ 0
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	0	0
Securities in a continuous unrealized loss position, 12 months or longer, fair value	2,088	2,136
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	(388)	(338)
Securities in a continuous unrealized loss position, fair value	2,088	2,136
Securities in a continuous unrealized loss position, unrealized losses	$ (388)	$ (338)
Corporate debt securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	5	4
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 5,178	$ 9,214
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	(87)	(153)
Securities in a continuous unrealized loss position, 12 months or longer, fair value	6,967	0
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	(92)	0
Securities in a continuous unrealized loss position, fair value	12,145	9,214
Securities in a continuous unrealized loss position, unrealized losses	$ (179)	$ (153)
Other debt securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities in a continuous unrealized loss position, number | security	3	3
Securities in a continuous unrealized loss position, less than 12 months, fair value	$ 0	$ 586
Securities in a continuous unrealized loss position, less than 12 months, unrealized losses	0	(11)
Securities in a continuous unrealized loss position, 12 months or longer, fair value	1,468	1,025
Securities in a continuous unrealized loss position, 12 months or longer, unrealized losses	(24)	(28)
Securities in a continuous unrealized loss position, fair value	1,468	1,611
Securities in a continuous unrealized loss position, unrealized losses	$ (24)	$ (39)