Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Line Items]
Net income	$ 2,598	$ 1,607
Preferred dividends	497	463
Net income applicable to common stock	2,101	1,144
Net income allocated to common stockholders, Distributed	93	92
Net income allocated to common stockholders, Undistributed	1,927	1,047
Distributed and undistributed earnings	$ 2,020	$ 1,139
Weighted-average basic common and participating shares outstanding	9,605,103	9,202,476
Less: weighted average participating restricted shares outstanding	373,646	46,000
Weighted-average basic shares outstanding	9,231,457	9,156,476
Basic net income per share (in dollars per share)	$ 0.22	$ 0.12
Add: share-based options and stock warrant	113,927	0
Weighted-average basic common and participating shares outstanding including share based options and stock warrants	9,719,030	9,202,476
Weighted-average dilutive shares oustanding	9,345,384	9,156,476
Dilutive net income per share (in dollars per share)	$ 0.22	$ 0.12
Stock Options
Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Line Items]
Weighted-average shares of potentially dilutive instruments that are not included in dilutive share calculation due to anti-dilutive effect	19,600	33,600
Stock Warrant
Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Line Items]
Weighted-average shares of potentially dilutive instruments that are not included in dilutive share calculation due to anti-dilutive effect	0	513,113
Restricted Stock
Earnings Per Share, Two Class Method and Antidilutive Securities Excluded from Computation [Line Items]
Less: weighted average participating restricted shares outstanding	373,646	46,000