Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended							9 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	Dec. 31, 2011	Dec. 31, 2012
Earnings Per Share Details
Net Income	$ 481	$ 465	$ 624	$ 152	$ 510	$ 309	$ 515	$ 1,334	$ 1,722
Weighted-average common shares outstanding (basic)								2,930,106	2,932,349
Dilutive effect of assumed exercise of stock options
Weighted-average common shares outstanding (diluted)								2,930,106	2,932,349
Basic Earnings Per Share	$ 0.17	$ 0.16	$ 0.21	$ 0.05	$ 0.18	$ 0.10	$ 0.18	$ 0.46	$ 0.59
Diluted Earnings Per Share	$ 0.17	$ 0.16	$ 0.21	$ 0.05	$ 0.18	$ 0.10	$ 0.18	$ 0.46	$ 0.59