Earnings Per Common Share and Stock Dividend (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Numerator:
Net income	$ 1,300	$ 815	$ 2,262	$ 1,503
Less: Preferred stock dividends	191	216	389	432
Discount accretion		106		179
Add: Redemption of preferred stock		96	20	96
Net income available to common shareholders	$ 1,109	$ 589	$ 1,893	$ 988
Denominator:
Weighted-average common shares outstanding - basic	4,269,097	4,225,993	4,265,714	4,224,308
Common stock equivalents	154,044	210,927	131,519	128,059
Weighted-average common shares outstanding - diluted	4,423,141	4,436,920	4,397,233	4,352,367
Earnings per common share:
Basic	$ 0.26	$ 0.14	$ 0.44	$ 0.23
Diluted	$ 0.25	$ 0.13	$ 0.43	$ 0.23