Minimum Regulatory Capital Requirements (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Consolidated Entities [Member]
Total capital to risk-weighted assets:
Capital, Amount	$ 35,795	$ 35,246
Capital to Risk Weighted Assets, Ratio	11.80%	12.20%
Capital Required for Capital Adequacy Purposes, Amount	24,179	23,043
Capital Required for Capital Adequacy Purposes to Risk Weighted Assets, Ratio	8.00%	8.00%
Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions, Amount	0	0
Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions to Risk Weighted Assets, Ratio	0.00%	0.00%
Tier I capital to risk-weighted assets:
Tier One Risk Based Capital, Amount	31,988	31,599
Tier One Risk Based Capital to Risk Weighted Assets, Ratio	10.60%	11.00%
Tier One Risk Based Capital Required for Capital Adequacy Purposes, Amount	12,090	11,521
Tier One Risk Based Capital Required For Capital Adequacy Purposes to Average Assets, Ratio	4.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions, Amount	0	0
Tier One Risk Based Capital Required To Be Well Capitalized Under Prompt Corrective Action Provisions to Average Assets, Ratio	0.00%	0.00%
Tier I capital to average assets:
Tier One Leverage Capital, Amount	31,988	31,599
Tier One Leverage Capital to Average Assets, Ratio	7.60%	7.60%
Tier One Leverage Capital Required for Capital Adequacy Purposes, Amount	16,807	16,713
Tier One Leverage Capital Required for Capital Adequacy Purposes to Average Assets, Ratio	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions, Amount	0	0
Tier One Leverage Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions to Average Assets, Ratio	0.00%	0.00%
Cornerstone Community Bank [Member]
Total capital to risk-weighted assets:
Capital, Amount	38,930	37,158
Capital to Risk Weighted Assets, Ratio	12.90%	13.00%
Capital Required for Capital Adequacy Purposes, Amount	24,123	22,876
Capital Required for Capital Adequacy Purposes to Risk Weighted Assets, Ratio	8.00%	8.00%
Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions, Amount	30,154	28,594
Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions to Risk Weighted Assets, Ratio	10.00%	10.00%
Tier I capital to risk-weighted assets:
Tier One Risk Based Capital, Amount	35,132	33,536
Tier One Risk Based Capital to Risk Weighted Assets, Ratio	11.70%	11.70%
Tier One Risk Based Capital Required for Capital Adequacy Purposes, Amount	12,061	11,438
Tier One Risk Based Capital Required For Capital Adequacy Purposes to Average Assets, Ratio	4.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions, Amount	18,092	17,157
Tier One Risk Based Capital Required To Be Well Capitalized Under Prompt Corrective Action Provisions to Average Assets, Ratio	6.00%	6.00%
Tier I capital to average assets:
Tier One Leverage Capital, Amount	35,132	33,536
Tier One Leverage Capital to Average Assets, Ratio	8.40%	8.00%
Tier One Leverage Capital Required for Capital Adequacy Purposes, Amount	16,787	16,686
Tier One Leverage Capital Required for Capital Adequacy Purposes to Average Assets, Ratio	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 20,984	$ 20,857
Tier One Leverage Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions to Average Assets, Ratio	5.00%	5.00%