Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	$ 223,684	$ 147,835
Available-for-sale securities, Gross Unrealized Gains	622	583
Available-for-sale securities, Gross Unrealized Losses	1,033	1,317
Available-for-sale securities, Estimated Fair Value	223,273	147,101
Held-to-maturity securities, Amortized Cost	4,732	5,185
Held-to-maturity securities, Gross Unrealized Gains	156	99
Held-to-maturity securities, Gross Unrealized Losses	134	222
Held-to-maturity securities, Estimated Fair Value	4,754	5,062
US Treasury Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	5,243	5,342
Available-for-sale securities, Gross Unrealized Gains	8	1
Available-for-sale securities, Gross Unrealized Losses	0	0
Available-for-sale securities, Estimated Fair Value	5,251	5,343
US Government Corporations and Agencies Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	62,359	60,754
Available-for-sale securities, Gross Unrealized Gains	65	62
Available-for-sale securities, Gross Unrealized Losses	227	372
Available-for-sale securities, Estimated Fair Value	62,197	60,444
Held-to-maturity securities, Amortized Cost	2,792	2,975
Held-to-maturity securities, Gross Unrealized Gains	0	0
Held-to-maturity securities, Gross Unrealized Losses	134	222
Held-to-maturity securities, Estimated Fair Value	2,658	2,753
US States and Political Subdivisions Debt Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Held-to-maturity securities, Amortized Cost	1,940	2,210
Held-to-maturity securities, Gross Unrealized Gains	156	99
Held-to-maturity securities, Gross Unrealized Losses	0	0
Held-to-maturity securities, Estimated Fair Value	2,096	2,309
Collateralized Mortgage Backed Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	155,462	81,130
Available-for-sale securities, Gross Unrealized Gains	547	520
Available-for-sale securities, Gross Unrealized Losses	806	937
Available-for-sale securities, Estimated Fair Value	155,203	80,713
Equity Securities [Member]
ScheduleOfAvailableForSaleSecuritiesLineItems
Available-for-sale securities, Amortized Cost	620	609
Available-for-sale securities, Gross Unrealized Gains	2	0
Available-for-sale securities, Gross Unrealized Losses	0	8
Available-for-sale securities, Estimated Fair Value	622	601
Held-to-maturity securities, Amortized Cost	0
Held-to-maturity securities, Estimated Fair Value	$ 0