Regulatory Matters (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Nonperforming Borrower relationships with an aggregate outstanding balance, threshold	$ 1,000,000
Adversely classified credit relationship, threshold	1,000,000
Loans with credit weaknesses, threshold	$ 500,000
Minimum [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I Capital (to average assets), Minimum Required Regulatory Capital, Ratio	8.00%
Total Capital (to risk weighted assets), Minimum Required Regulatory Capital, Ratio	11.00%