Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan and lease losses	$ 1,209	[1]	$ 1,922	[1]
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of unallocated loan amount	5.00%

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