Fair Value of Financial Instruments (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Quantitative information about level 3 of fair value measurements for financial instruments
Other real estate owned	997	752	$ 1,037
Fair Value Measurement Using: Level 3
Quantitative information about level 3 of fair value measurements for financial instruments
Other real estate owned	997	752	1,037
Non-recurring basis | Fair Value Measurement Using: Level 3
Quantitative information about level 3 of fair value measurements for financial instruments
Collateral dependent impaired loans	2,742	1,730
Other real estate owned	997	752
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial and industrial
Quantitative information about level 3 of fair value measurements for financial instruments
Collateral dependent impaired loans	1,853	31
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial and industrial | Collateral analysis
Unobservable Inputs
Rate (as a percent)	6.70%
Management adjustment to reflect current conditions and selling costs	8 years
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial and industrial | Collateral analysis | Minimum
Unobservable Inputs
Rate (as a percent)		6.00%
Management adjustment to reflect current conditions and selling costs		3 years
Management adjustment to reflect current conditions and selling costs (as a percent)	0.00%	0.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial and industrial | Collateral analysis | Maximum
Unobservable Inputs
Management adjustment to reflect current conditions and selling costs (as a percent)	10.00%	10.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial owner occupied
Quantitative information about level 3 of fair value measurements for financial instruments
Collateral dependent impaired loans	379	718
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial owner occupied | Collateral analysis
Unobservable Inputs
Rate (as a percent)		7.00%
Management adjustment to reflect current conditions and selling costs		3 years
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial owner occupied | Collateral analysis | Minimum
Unobservable Inputs
Rate (as a percent)	6.75%
Management adjustment to reflect current conditions and selling costs	7 years
Management adjustment to reflect current conditions and selling costs (as a percent)	0.00%	0.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: Commercial owner occupied | Collateral analysis | Maximum
Unobservable Inputs
Rate (as a percent)		11.75%
Management adjustment to reflect current conditions and selling costs		8 years
Management adjustment to reflect current conditions and selling costs (as a percent)	10.00%	10.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: SBA
Quantitative information about level 3 of fair value measurements for financial instruments
Collateral dependent impaired loans		14
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: SBA | Collateral analysis | Minimum
Unobservable Inputs
Rate (as a percent)		6.00%
Management adjustment to reflect current conditions and selling costs		7 years
Management adjustment to reflect current conditions and selling costs (as a percent)		0.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Business loans: SBA | Collateral analysis | Maximum
Unobservable Inputs
Management adjustment to reflect current conditions and selling costs (as a percent)		20.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: Commercial non-owner occupied
Quantitative information about level 3 of fair value measurements for financial instruments
Collateral dependent impaired loans	458	918
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: Commercial non-owner occupied | Collateral analysis | Minimum
Unobservable Inputs
Rate (as a percent)	7.00%	6.13%
Management adjustment to reflect current conditions and selling costs	12 years	12 years
Management adjustment to reflect current conditions and selling costs (as a percent)	0.00%	0.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: Commercial non-owner occupied | Collateral analysis | Maximum
Unobservable Inputs
Rate (as a percent)		7.00%
Management adjustment to reflect current conditions and selling costs		13 years
Management adjustment to reflect current conditions and selling costs (as a percent)	15.00%	15.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: Land
Quantitative information about level 3 of fair value measurements for financial instruments
Other real estate owned	711	752
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: Land | Collateral analysis | Minimum
Unobservable Inputs
Management adjustment to reflect current conditions and selling costs (as a percent)	0.00%	0.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: Land | Collateral analysis | Maximum
Unobservable Inputs
Management adjustment to reflect current conditions and selling costs (as a percent)	10.00%	10.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: One-to-four family
Quantitative information about level 3 of fair value measurements for financial instruments
Collateral dependent impaired loans	52	49
Other real estate owned	286
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: One-to-four family | Collateral analysis | Minimum
Unobservable Inputs
Rate (as a percent)	8.00%	11.10%
Management adjustment to reflect current conditions and selling costs	5 years	6 years
Management adjustment to reflect current conditions and selling costs (as a percent)	0.00%	0.00%
Non-recurring basis | Fair Value Measurement Using: Level 3 | Real estate loans: One-to-four family | Collateral analysis | Maximum
Unobservable Inputs
Rate (as a percent)	15.00%	15.00%
Management adjustment to reflect current conditions and selling costs	16 years	15 years
Management adjustment to reflect current conditions and selling costs (as a percent)	10.00%	10.00%