Loans and the Allowance for Loan Losses (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Related Parties	$ 20,282,000		$ 20,365,000
Loans and Leases Receivable, Related Parties, Additions	465,000
Loans and Leases Receivable, Related Parties, Collections	548,000
Loans Pledged as Collateral	582,200,000		564,700,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	54,000	33,000	104,000
Financing Receivable, Modifications, Recorded Investment	6,900,000		6,600,000
Loans modified in troubled debt restructuring on non-accrual status	1,200,000		826,000
Loans on which concessions were made	1,500,000
Loans on which two or more concessions were made	5,400,000
Impairment Loans Threshold	200,000
Proceeds from sale of collateral securities reported as non-accrual	729,000
Performing subsequent default troubled debt restructuring upgrade to pass watch status	4,100,000
Fannie Mae [Member]
Financing Receivable, Impaired [Line Items]
Loans Sold On Nonrecourse Basis	8,200,000
Residential mortgage loans [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 337,000