Regulatory Matters (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Total capital (to risk-weighted assets)
Actual Amount	$ 70,402	$ 67,835
Total capital (to risk-weighted assets), Ratio
Actual Ratio (as a percent)	10.69%	10.20%
Tier I capital (to risk-weighted assets)
Actual Amount	41,356	39,587
Tier I capital (to risk-weighted assets), Ratio
Actual Ratio (as a percent)	6.28%	5.95%
Tier I capital (to average assets)
Actual Amount	41,356	39,587
Tier I capital (to average assets), Ratio
Actual Ratio (as a percent)	4.42%	4.07%
Minimum
Total capital (to risk-weighted assets)
For Capital Adequacy Purposes, Amount	52,690	53,226
Total capital (to risk-weighted assets), Ratio
For Capital Adequacy Purposes, Ratio (as a percent)	8.00%	8.00%
Tier I capital (to risk-weighted assets)
For Capital Adequacy Purposes, Amount	26,345	26,613
Tier I capital (to risk-weighted assets), Ratio
For Capital Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
Tier I capital (to average assets)
For Capital Adequacy Purposes, Amount	37,449	38,879
Tier I capital (to average assets), Ratio
For Capital Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
Bank
Total capital (to risk-weighted assets)
Actual Amount	80,705	78,410
Total capital (to risk-weighted assets), Ratio
Actual Ratio (as a percent)	12.26%	11.79%
Tier I capital (to risk-weighted assets)
Actual Amount	72,343	69,963
Tier I capital (to risk-weighted assets), Ratio
Actual Ratio (as a percent)	10.99%	10.52%
Tier I capital (to average assets)
Actual Amount	72,343	69,963
Tier I capital (to average assets), Ratio
Actual Ratio (as a percent)	7.73%	7.20%
Bank | Minimum
Total capital (to risk-weighted assets)
For Capital Adequacy Purposes, Amount	52,657	53,193
To Be Well Capitalized Under Prompt Corrective Action Provision, Amount	65,821	66,491
Total capital (to risk-weighted assets), Ratio
For Capital Adequacy Purposes, Ratio (as a percent)	8.00%	8.00%
To be Well Capitalized Under Prompt Corrective Action Provision, Ratio (as a percent)	10.00%	10.00%
Tier I capital (to risk-weighted assets)
For Capital Adequacy Purposes, Amount	26,328	26,597
To Be Well Capitalized Under Prompt Corrective Action Provision, Amount	39,493	39,895
Tier I capital (to risk-weighted assets), Ratio
For Capital Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
To be Well Capitalized Under Prompt Corrective Action Provision, Ratio (as a percent)	6.00%	6.00%
Tier I capital (to average assets)
For Capital Adequacy Purposes, Amount	37,434	38,865
To Be Well Capitalized Under Prompt Corrective Action Provision, Amount	$ 46,793	$ 48,581
Tier I capital (to average assets), Ratio
For Capital Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
To be Well Capitalized Under Prompt Corrective Action Provision, Ratio (as a percent)	5.00%	5.00%