Regulatory Agreement (Details)	Dec. 31, 2012	Dec. 31, 2011
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 Leverage Capital ratio (in hundredths)	9.74%	8.81%
Tier 1 Capital (to Risk Weighted Assets)	16.79%	12.93%
Total Capital (to Risk Weighted Assets)	18.05%	14.21%
Tier 1 capital required to be well capitalized (to Average Assets)	5.00%	5.00%
Tier 1 Capital required to be well capitalized (to Risk Weighted Assets)	6.00%	6.00%
Total Capital required to be well capitalized (to Risk Weighted Assets)	10.00%	10.00%
Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 Leverage Capital ratio (in hundredths)	9.74%
Tier 1 Capital (to Risk Weighted Assets)	16.79%
Total Capital (to Risk Weighted Assets)	18.05%
Tier 1 capital required to be well capitalized (to Average Assets)	8.00%
Tier 1 Capital required to be well capitalized (to Risk Weighted Assets)	10.50%
Total Capital required to be well capitalized (to Risk Weighted Assets)	12.00%
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 Leverage Capital ratio (in hundredths)	9.79%	8.85%
Tier 1 Capital (to Risk Weighted Assets)	16.89%	12.98%
Total Capital (to Risk Weighted Assets)	18.15%	14.26%

The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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