Minimum Regulatory Capital Requirements (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Consolidated Entities [Member]
Total capital to risk-weighted assets:
Capital, Amount	$ 36,107	$ 34,820
Capital to Risk Weighted Assets, Ratio	11.60%	11.30%
Capital Required for Capital Adequacy Purposes, Amount	24,817	24,634
Capital Required for Capital Adequacy Purposes to Risk Weighted Assets, Ratio	8.00%	8.00%
Tier I capital to risk-weighted assets:
Tier One Risk Based Capital, Amount	32,612	31,617
Tier One Risk Based Capital to Risk Weighted Assets, Ratio	10.50%	10.30%
Tier One Risk Based Capital Required for Capital Adequacy Purposes, Amount	12,408	12,317
Tier One Risk Based Capital Required for Capital Adequacy Purposes to Risk Weighted Assets, Ratio	4.00%	4.00%
Tier I capital to average assets:
Tier One Leverage Capital, Amount	32,612	31,617
Tier One Leverage Capital to Average Assets, Ratio	8.00%	7.50%
Tier One Leverage Capital Required for Capital Adequacy Purposes, Amount	16,304	16,885
Tier One Leverage Capital Required for Capital Adequacy Purposes to Average Assets, Ratio	4.00%	4.00%
Cornerstone Community Bank [Member]
Total capital to risk-weighted assets:
Capital, Amount	41,670	39,342
Capital to Risk Weighted Assets, Ratio	13.50%	12.80%
Capital Required for Capital Adequacy Purposes, Amount	24,784	24,552
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	30,981	30,691
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	38,175	36,139
Tier One Risk Based Capital to Risk Weighted Assets, Ratio	12.30%	11.80%
Tier One Risk Based Capital Required for Capital Adequacy Purposes, Amount	12,392	12,276
Tier One Risk Based Capital Required for Capital Adequacy Purposes to Risk Weighted Assets, Ratio	4.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions, Amount	18,588	18,414
Tier One Risk Based Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions to Risk Weighted Assets, Ratio	6.00%	6.00%
Tier I capital to average assets:
Tier One Leverage Capital, Amount	38,175	36,139
Tier One Leverage Capital to Average Assets, Ratio	9.40%	8.60%
Tier One Leverage Capital Required for Capital Adequacy Purposes, Amount	16,287	16,870
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	$ 20,359	$ 21,087
Tier One Leverage Capital Required to be Well Capitalized Under Prompt Corrective Action Provisions to Average Assets, Ratio	5.00%	5.00%