Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	$ 202,772	$ 185,931
Gross Unrealized Gains	2,286	2,117
Gross Unrealized Losses	(178)	(483)
Available-for-sale securities, at fair value	204,880	187,565
Held-to-maturity Securities [Abstract]
Held-to-maturity, Amortized Cost	44,678	50,713
Gross Unrealized Gains	520	572
Gross Unrealized Losses	(297)	(560)
Held-to-maturity, fair value (in dollars)	44,901	50,725
US Treasury and Government [Member]
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	95,055	57,108
Gross Unrealized Gains	101	21
Gross Unrealized Losses	(3)	(85)
Available-for-sale securities, at fair value	95,153	57,044
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	81,890	100,002
Gross Unrealized Gains	2,106	2,022
Gross Unrealized Losses	(16)	(108)
Available-for-sale securities, at fair value	83,980	101,916
Held-to-maturity Securities [Abstract]
Held-to-maturity, Amortized Cost	16,053	16,823
Gross Unrealized Gains	421	485
Gross Unrealized Losses	(112)	(123)
Held-to-maturity, fair value (in dollars)	16,362	17,185
Collateralized Mortgage Backed Securities [Member]
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	25,827	28,821
Gross Unrealized Gains	79	74
Gross Unrealized Losses	(159)	(290)
Available-for-sale securities, at fair value	25,747	28,605
Held-to-maturity Securities [Abstract]
Held-to-maturity, Amortized Cost	28,625	33,890
Gross Unrealized Gains	99	87
Gross Unrealized Losses	(185)	(437)
Held-to-maturity, fair value (in dollars)	$ 28,539	$ 33,540