Earnings Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Numerator:
Net income	$ 1,133	$ 1,226	$ 815	$ 688	$ 440	$ 483	$ 628	$ 537	$ 3,862		$ 2,088		$ 890
Less: Preferred stock dividends	204	204	216	216	217	216	216	216	840		865		865
Discount accretion		180	106	73	72	70	69	68	360	[1]	279	[1]	260	[1]
Add: Redemption of preferred stock									96
Net income(loss) available to common shareholders (1)	$ 929	$ 842	$ 589	$ 399	$ 151	$ 197	$ 343	$ 253	$ 2,758	[1]	$ 944	[1]	$ (235)	[1]
Denominator:
Weighted-average common shares outstanding - basic	4,241,280	4,229,819	4,225,993	4,222,622	4,203,072	4,203,072	4,203,072	4,194,705	4,229,928		4,200,980		4,178,703
Common stock equivalents									110,030		85,438
Weighted-average common shares outstanding - diluted	4,305,127	4,349,971	4,436,920	4,267,813	4,225,569	4,328,383	4,300,180	4,291,538	4,339,958		4,286,418		4,178,703
Earnings (loss) per common share (1):
Basic	$ 0.22	$ 0.20	$ 0.14	$ 0.09	$ 0.04	$ 0.05	$ 0.08	$ 0.06	$ 0.65		$ 0.22		$ (0.06)
Diluted	$ 0.22	$ 0.19	$ 0.13	$ 0.09	$ 0.04	$ 0.05	$ 0.08	$ 0.06	$ 0.64		$ 0.22		$ (0.06)

[1] See Note 1 to the financial statements for information related to a correction of an error in 2010.