Portfolio Loans And Allowance For Loan Losses (Schedule Of Risk Characteristics By Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	$ 608,947	$ 707,319
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	552,657	650,582
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	11,984	9,878
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	44,306	46,859
Commercial And Commercial Mortgage Loans Excluding Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	405,168	482,643
Commercial And Commercial Mortgage Loans Excluding Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	356,389	435,266
Commercial And Commercial Mortgage Loans Excluding Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	11,160	9,521
Commercial And Commercial Mortgage Loans Excluding Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	37,619	37,856
Commercial And Residential Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	29,034	40,776
Commercial And Residential Construction Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	24,156	32,825
Commercial And Residential Construction Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	0	0
Commercial And Residential Construction Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	4,878	7,951
Residential Mortgage Loans Excluding Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	86,550	88,308
Residential Mortgage Loans Excluding Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	84,503	87,278
Residential Mortgage Loans Excluding Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	522	313
Residential Mortgage Loans Excluding Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	1,525	717
Second And Home Equity Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	79,342	86,059
Second And Home Equity Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	78,812	85,751
Second And Home Equity Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	302	44
Second And Home Equity Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	228	264
Other Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	8,853	9,533
Other Consumer Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	8,797	9,462
Other Consumer Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	0	0
Other Consumer Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at End of Period	$ 56	$ 71