Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	$ 152,891	$ 147,835
Available-for-sale securities, Gross Unrealized Gains	511	583
Available-for-sale securities, Gross Unrealized Losses	1,155	1,317
Available-for-sale securities, Estimated Fair Value	152,247	147,101
Held-to-maturity securities, Amortized Cost	5,074	5,185
Held-to-maturity securities, Gross Unrealized Gains	141	99
Held-to-maturity securities, Gross Unrealized Losses	211	222
Held-to-maturity securities, Estimated Fair Value	5,004	5,062
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	5,309	5,342
Available-for-sale securities, Gross Unrealized Gains	0	1
Available-for-sale securities, Gross Unrealized Losses	4	0
Available-for-sale securities, Estimated Fair Value	5,305	5,343
US Government Corporations and Agencies Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	54,705	60,754
Available-for-sale securities, Gross Unrealized Gains	50	62
Available-for-sale securities, Gross Unrealized Losses	373	372
Available-for-sale securities, Estimated Fair Value	54,382	60,444
Held-to-maturity securities, Amortized Cost	2,891	2,975
Held-to-maturity securities, Gross Unrealized Gains	0	0
Held-to-maturity securities, Gross Unrealized Losses	211	222
Held-to-maturity securities, Estimated Fair Value	2,680	2,753
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity securities, Amortized Cost	2,183	2,210
Held-to-maturity securities, Gross Unrealized Gains	141	99
Held-to-maturity securities, Gross Unrealized Losses	0	0
Held-to-maturity securities, Estimated Fair Value	2,324	2,309
Collateralized Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	92,263	81,130
Available-for-sale securities, Gross Unrealized Gains	461	520
Available-for-sale securities, Gross Unrealized Losses	774	937
Available-for-sale securities, Estimated Fair Value	91,950	80,713
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	614	609
Available-for-sale securities, Gross Unrealized Gains	0	0
Available-for-sale securities, Gross Unrealized Losses	4	8
Available-for-sale securities, Estimated Fair Value	610	601
Held-to-maturity securities, Amortized Cost	0
Held-to-maturity securities, Estimated Fair Value	$ 0