Investment Securities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2015	Dec. 31, 2014
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	$ 219,081	$ 235,579
Available-for-sale securities, Gross Unrealized Gains	1,876	1,328
Available-for-sale securities, Gross Unrealized Losses	523	799
Available-for-sale securities, Estimated Fair Value	220,434	236,108
Held-to-maturity securities, Amortized Cost	4,192	4,630
Held-to-maturity securities, Gross Unrealized Gains	131	147
Held-to-maturity securities, Gross Unrealized Losses	43	83
Held-to-maturity securities, Estimated Fair Value	4,280	4,694
US Treasury Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	5,111	5,210
Available-for-sale securities, Gross Unrealized Gains	12	5
Available-for-sale securities, Gross Unrealized Losses	0	0
Available-for-sale securities, Estimated Fair Value	5,123	5,215
US Government Corporations and Agencies Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	65,707	75,220
Available-for-sale securities, Gross Unrealized Gains	207	87
Available-for-sale securities, Gross Unrealized Losses	160	347
Available-for-sale securities, Estimated Fair Value	65,754	74,960
Held-to-maturity securities, Amortized Cost	2,575	2,791
Held-to-maturity securities, Gross Unrealized Gains	0	0
Held-to-maturity securities, Gross Unrealized Losses	43	83
Held-to-maturity securities, Estimated Fair Value	2,532	2,708
US States and Political Subdivisions Debt Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Held-to-maturity securities, Amortized Cost	1,617	1,839
Held-to-maturity securities, Gross Unrealized Gains	131	147
Held-to-maturity securities, Gross Unrealized Losses	0	0
Held-to-maturity securities, Estimated Fair Value	1,748	1,986
Collateralized Mortgage Backed Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	147,629	154,525
Available-for-sale securities, Gross Unrealized Gains	1,647	1,230
Available-for-sale securities, Gross Unrealized Losses	363	452
Available-for-sale securities, Estimated Fair Value	148,913	155,303
Equity Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	634	624
Available-for-sale securities, Gross Unrealized Gains	10	6
Available-for-sale securities, Gross Unrealized Losses	0	0
Available-for-sale securities, Estimated Fair Value	644	$ 630
Held-to-maturity securities, Amortized Cost	0
Held-to-maturity securities, Estimated Fair Value	$ 0

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

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-Name Accounting Standards Codification

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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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