Loans (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Deferred Income	$ 9,600,000		$ 9,400,000
Troubled Debt Restructuring, Classification removed		966,000
Partial Charge-Offs On Impaired Loans	25,792,000		32,480,000
Impaired Financing Receivable, Related Allowance	5,064,000		3,660,000
Recorded investment, related to loans	11,300,000		9,300,000
Troubled Debt Restructuring Included In Nonaccrual Loans	42,600,000		47,500,000
TDRs included in accruing loan totals	16,900,000		16,300,000
Nonaccrual Trouble Debt Restructuring Current	18,100,000		15,700,000
Commitments to lend additional funds to borrowers whose terms had been modified in a TDR	2,200,000		1,400,000
Specific reserves related to troubled debt restructuring	3,500,000		2,400,000
Additional specific reserves related to troubled debt restructurings	857,000	18,000
Modified substandard commercial loans, total recorded investment	131,000	392,000
Modified substandard consumer loans, total recorded investment	4,500,000	5,700,000
Loan Modifications on Nonacrrual status	1,100,000	900,000
Loan past due period before entering default status	30 days
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period	1,116,000	2,860,000
Deposit Liabilities Reclassified as Loans Receivable	3,200,000		2,300,000
Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans	21,600,000		32,400,000
Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Partial Charge-Offs On Impaired Loans	4,200,000		0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment, During Period		872,000
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Related Allowance	0		0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member]
Financing Receivable, Recorded Investment [Line Items]
Impaired Financing Receivable, Related Allowance	645,000		262,000
Accruing [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period		499,000
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans modified during period		$ 2,400,000