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Securities (Summary of Book Values and Fair Values of Investment Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Securities available for sale:
Amortized Cost	$ 166,778	$ 158,708
Fair Value	165,614	158,018
Unrealized Gain	413	830
Unrealized (Losses)	(1,577)	(1,520)
Securities held to maturity:
Amortized Cost	154,610	178,687
Fair Value	157,146	182,411
Unrealized Gain	3,284	3,832
Unrealized (Losses)	(748)	(108)
US Government-sponsored enterprises securities [Member]
Securities available for sale:
Amortized Cost	19,000	27,546
Fair Value	18,972	27,521
Unrealized Gain	1	33
Unrealized (Losses)	(29)	(58)
Mortgage-backed securities [Member]
Securities available for sale:
Amortized Cost	122,474	130,073
Fair Value	121,553	129,510
Unrealized Gain	348	751
Unrealized (Losses)	(1,269)	(1,314)
Securities held to maturity:
Amortized Cost	102,509	124,924
Fair Value	$ 101,767	124,861
Unrealized Gain		45
Unrealized (Losses)	$ (742)	(108)
Corporate bonds [Member]
Securities available for sale:
Amortized Cost	25,216	1,000
Fair Value	$ 24,946	$ 865
Unrealized Gain
Unrealized (Losses)	$ (270)	$ (135)
Equities [Member]
Securities available for sale:
Amortized Cost	88	89
Fair Value	143	122
Unrealized Gain	64	46
Unrealized (Losses)	(9)	(13)
States and local governments [Member]
Securities held to maturity:
Amortized Cost	52,101	53,763
Fair Value	55,379	57,550
Unrealized Gain	3,284	$ 3,787
Unrealized (Losses)	$ 6

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