Loans (Recorded Investment in Home Equity, Consumer and Residential Mortgage Loans Based on Payment Activity) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,201,598	[1]	$ 1,213,423	[2]
Loans Acquired With Deteriorated Credit Quality	10,184		10,877
Home Equity Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	73,175	[1]	74,699	[2]
Loans Acquired With Deteriorated Credit Quality	0		0
Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	41,891	[1]	41,231	[2]
Loans Acquired With Deteriorated Credit Quality	144		148
Residential Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	86,543	[1]	88,815	[2]
Loans Acquired With Deteriorated Credit Quality	149		149
Performing [Member] | Home Equity Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	73,102		74,521
Performing [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	41,739		41,064
Performing [Member] | Residential Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	86,426		88,558
Nonperforming [Member] | Home Equity Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	73		178
Nonperforming [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	152		167
Nonperforming [Member] | Residential Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 117		$ 257

[1] Total recorded investment in loans includes $4,980 in accrued interest

[2] Total recorded investment in loans includes $5,522 in accrued interest