Securities - Contractual Maturities of Securities (Details 2) (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Available-for-sale, Amortized Cost
Due in one year or less	$ 15,023,000
Due after one year through five years	40,026,000
Available-for-sale, Amortized Cost	177,658,000		185,931,000
Available-for-sale, Fair Value
Due in one year or less	15,037,000
Due after one year through five years	40,085,000
Available-for-sale Securities, Total	180,038,000us-gaap_AvailableForSaleSecurities		187,565,000us-gaap_AvailableForSaleSecurities
Held-to-maturity, Amortized Cost
Held-to-maturity, Amortized Cost	47,997,000us-gaap_HeldToMaturitySecurities		50,713,000us-gaap_HeldToMaturitySecurities
Held-to-maturity, Fair Value
Held-to-maturity, Fair Value	48,362,000		50,725,000
Proceeds from sale of securities
Proceeds from Sale of Available-for-sale Securities	0	0
Proceeds from Sale of Held-to-maturity Securities	0	0
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale, Amortized Cost
Debt maturities without single maturity date	94,716,000
Available-for-sale, Amortized Cost	94,716,000		100,002,000
Available-for-sale, Fair Value
Debt maturities without single maturity date	97,133,000
Available-for-sale Securities, Total	97,133,000		101,916,000
Held-to-maturity, Amortized Cost
Debt maturities without single maturity date	15,650,000
Held-to-maturity, Amortized Cost	15,650,000		16,823,000
Held-to-maturity, Fair Value
Debt maturities without single maturity date	16,060,000
Held-to-maturity, Fair Value	16,060,000		17,185,000
Collateralized Mortgage Backed Securities [Member]
Available-for-sale, Amortized Cost
Debt maturities without single maturity date	27,893,000
Available-for-sale, Amortized Cost	27,893,000		28,821,000
Available-for-sale, Fair Value
Debt maturities without single maturity date	27,783,000
Available-for-sale Securities, Total	27,783,000		28,605,000
Held-to-maturity, Amortized Cost
Debt maturities without single maturity date	32,347,000
Held-to-maturity, Amortized Cost	32,347,000		33,890,000
Held-to-maturity, Fair Value
Debt maturities without single maturity date	32,302,000
Held-to-maturity, Fair Value	$ 32,302,000		$ 33,540,000

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

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the next rolling twelve months following the latest balance sheet. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments and fair value hedge accounting adjustments. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the second through fifth rolling twelve months following the latest balance sheet. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the second through fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of available-for-sale debt securities at cost, net of adjustments, that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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Amount of available-for-sale debt securities at fair value that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the fair value over several maturity groupings.

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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 held-to-maturity debt securities at fair value that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the fair value over several maturity groupings.

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Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, over several maturity groupings.

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer.

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