Loans and Allowance for Loan Losses (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable Loan Balance Charged Off	$ 6,000
Related allowance recorded		951,000	901,000
Loans Receivable, Gross, Commercial, Real Estate, Total		278,000
Provision for Loan and Lease Losses		800,000	1,900,000	2,000,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans		511,000	164,000	47,000
Letters of Credit Outstanding, Amount		69,100,000	53,500,000
Stand By Letters Of Credit		1,600,000	1,800,000
Mortgage Loans on Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Related allowance recorded		234,000	521,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable Loan Balance Charged Off			14,600,000
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable Loan Balance Charged Off		16,800,000
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Related allowance recorded		234,000	388,000
Provision for Loan and Lease Losses		(341,000)	2,031,000	904,000
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Related allowance recorded		82,000	165,000
Financing Receivable Outstanding Unpaid Principal Balance		338,300,000	263,500,000
Provision For Mortgage Repurchase Reserve		682,000	550,000	429,000
Mortgage Loans On Real Estate Reserve Amount		468,000	418,000
Provision for Loan and Lease Losses		$ (91,000)	$ 204,000	$ 234,000