Loans and Leases ( Troubled Debt Restructuring & Narrative) (Details 6) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015 contract	Mar. 31, 2014 contract	Dec. 31, 2014
Loans and Leases and the Allowance for Loan and Lease Losses
Loans modified in a TDR	$ 61,800,000		$ 60,200,000
Available commitments under Revolving Credit Lines, Modified as TDR			0
Loans Modified as a TDR
Number of Contracts	82	69
Recorded Investment (as of period end)	6,450,000	7,776,000
Increase in Allowance (as of period end)	81,000	156,000
Land Loan | Maximum
Loans and Leases and the Allowance for Loan and Lease Losses
Period of Time Loan Being Fully Amortized	360 months
Extending Balloon Payments	5 years
Commercial
Loans Modified as a TDR
Number of Contracts	18	19
Recorded Investment (as of period end)	3,194,000	6,248,000
Increase in Allowance (as of period end)	1,000	120,000
Commercial and Industrial
Loans Modified as a TDR
Number of Contracts	17	18
Recorded Investment (as of period end)	2,687,000	5,883,000
Increase in Allowance (as of period end)	1,000	120,000
Commercial Mortgage
Loans Modified as a TDR
Number of Contracts	1	1
Recorded Investment (as of period end)	507,000	365,000
Increase in Allowance (as of period end)	0	0
Consumer
Loans Modified as a TDR
Number of Contracts	64	50
Recorded Investment (as of period end)	3,256,000	1,528,000
Increase in Allowance (as of period end)	80,000	36,000
Residential Mortgage
Loans Modified as a TDR
Number of Contracts	5	2
Recorded Investment (as of period end)	2,122,000	733,000
Increase in Allowance (as of period end)	61,000	23,000
Residential Mortgage | Maximum
Loans and Leases and the Allowance for Loan and Lease Losses
Period of Time Loan Being Fully Amortized	40 years
Home Equity
Loans Modified as a TDR
Number of Contracts	2	1
Recorded Investment (as of period end)	203,000	74,000
Increase in Allowance (as of period end)	3,000	1,000
Automobile
Loans Modified as a TDR
Number of Contracts	35	37
Recorded Investment (as of period end)	780,000	626,000
Increase in Allowance (as of period end)	11,000	9,000
Other
Loans Modified as a TDR
Number of Contracts	22	10
Recorded Investment (as of period end)	151,000	95,000
Increase in Allowance (as of period end)	$ 5,000	$ 3,000