Securities - Amortized Cost and Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	$ 177,658	$ 185,931
Gross Unrealized Gains	2,595	2,117
Gross Unrealized Losses	(215)	(483)
Available-for-sale securities, at fair value	180,038us-gaap_AvailableForSaleSecurities	187,565us-gaap_AvailableForSaleSecurities
Held-to-maturity Securities [Abstract]
Held-to-maturity, Amortized Cost	47,997us-gaap_HeldToMaturitySecurities	50,713us-gaap_HeldToMaturitySecurities
Gross Unrealized Gains	630	572
Gross Unrealized Losses	(265)	(560)
Held-to-maturity, fair value (in dollars)	48,362	50,725
US Treasury and Government [Member]
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	55,049	57,108
Gross Unrealized Gains	78	21
Gross Unrealized Losses	(5)	(85)
Available-for-sale securities, at fair value	55,122	57,044
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	94,716	100,002
Gross Unrealized Gains	2,445	2,022
Gross Unrealized Losses	(28)	(108)
Available-for-sale securities, at fair value	97,133	101,916
Held-to-maturity Securities [Abstract]
Held-to-maturity, Amortized Cost	15,650	16,823
Gross Unrealized Gains	493	485
Gross Unrealized Losses	(83)	(123)
Held-to-maturity, fair value (in dollars)	16,060	17,185
Collateralized Mortgage Backed Securities [Member]
Available-for-sale Securities [Abstract]
Available-for-sale, Amortized Cost	27,893	28,821
Gross Unrealized Gains	72	74
Gross Unrealized Losses	(182)	(290)
Available-for-sale securities, at fair value	27,783	28,605
Held-to-maturity Securities [Abstract]
Held-to-maturity, Amortized Cost	32,347	33,890
Gross Unrealized Gains	137	87
Gross Unrealized Losses	(182)	(437)
Held-to-maturity, fair value (in dollars)	$ 32,302	$ 33,540

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Amount of accumulated unrealized gain on investments in debt securities classified as held-to-maturity.

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