Loans and Allowance for Loan Losses (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 23,044	$ 23,011
Loans charged off	(4,274)	(4,502)
Recoveries	768	744
Provision for loan losses	2,052	3,791
Ending balance	21,590	23,044
Ending Balance: Individually evaluated for impairment	2,981	3,106
Ending Balance: Collectively evaluated for impairment	18,609	19,938
Ending Balance: Individually evaluated for impairment	27,947	27,157
Ending Balance: Collectively evaluated for impairment	1,552,455	1,536,709
Loans ending balance	1,580,402	1,563,866
Residential real estate loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	6,996	6,398
Loans charged off	(1,059)	(1,197)
Recoveries	35	73
Provision for loan losses	(369)	1,722
Ending balance	5,603	6,996
Ending Balance: Individually evaluated for impairment	1,750	2,255
Ending Balance: Collectively evaluated for impairment	3,853	4,741
Ending Balance: Individually evaluated for impairment	14,435	13,805
Ending Balance: Collectively evaluated for impairment	555,384	558,368
Loans ending balance	569,819	572,173
Commercial real estate loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	4,549	5,702
Loans charged off	(952)	(593)
Recoveries	121	222
Provision for loan losses	656	(782)
Ending balance	4,374	4,549
Ending Balance: Individually evaluated for impairment	526	265
Ending Balance: Collectively evaluated for impairment	3,848	4,284
Ending Balance: Individually evaluated for impairment	8,864	7,968
Ending Balance: Collectively evaluated for impairment	532,235	498,263
Loans ending balance	541,099	506,231
Commercial loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,933	4,846
Loans charged off	(1,426)	(1,393)
Recoveries	495	406
Provision for loan losses	1,218	2,074
Ending balance	6,220	5,933
Ending Balance: Individually evaluated for impairment	132	286
Ending Balance: Collectively evaluated for impairment	6,088	5,647
Ending Balance: Individually evaluated for impairment	2,635	3,610
Ending Balance: Collectively evaluated for impairment	176,568	186,844
Loans ending balance	179,203	190,454
Home equity loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	2,520	2,704
Loans charged off	(647)	(1,234)
Recoveries	56	23
Provision for loan losses	474	1,027
Ending balance	2,403	2,520
Ending Balance: Individually evaluated for impairment	433	261
Ending Balance: Collectively evaluated for impairment	1,970	2,259
Ending Balance: Individually evaluated for impairment	1,571	1,515
Ending Balance: Collectively evaluated for impairment	271,059	276,860
Loans ending balance	272,630	278,375
Consumer loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	184	420
Loans charged off	(190)	(85)
Recoveries	61	20
Provision for loan losses	264	(171)
Ending balance	319	184
Ending Balance: Individually evaluated for impairment	140	39
Ending Balance: Collectively evaluated for impairment	179	145
Ending Balance: Individually evaluated for impairment	442	259
Ending Balance: Collectively evaluated for impairment	17,209	16,374
Loans ending balance	17,651	16,633
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	2,862	2,941
Loans charged off
Recoveries
Provision for loan losses	(191)	(79)
Ending balance	2,671	2,862
Ending Balance: Individually evaluated for impairment
Ending Balance: Collectively evaluated for impairment	2,671	2,862
Ending Balance: Individually evaluated for impairment
Ending Balance: Collectively evaluated for impairment		0
Loans ending balance