Allowance for Loan Losses, Nonperforming Assets and Impaired Loans, Financing Receivables Past Due (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2010
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	$ 4,090
90 or More Days Past Due	3,755
90 or More Days Past Due and Still Accruing	170	481		1,336
Nonaccruals (Including Impaired Nonaccruals)	13,021	5,204		8,071
Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	7,677	4,300	[1]
90 or More Days Past Due	3,755	3,284	[1]
90 or More Days Past Due and Still Accruing	170	481	[1]
Nonaccruals (Including Impaired Nonaccruals)	5,617	5,204	[1]
Commercial and Industrial [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		31	[1]
90 or More Days Past Due		26	[1]
90 or More Days Past Due and Still Accruing		26	[1]
Nonaccruals (Including Impaired Nonaccruals)		139	[1]
Real Estate Construction [Member] | Construction, Residential [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	0
90 or More Days Past Due	123
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	123
Real Estate Construction [Member] | Construction, Other [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	31
90 or More Days Past Due	89
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	3,109
Real Estate Construction [Member] | Construction, Other [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	31
90 or More Days Past Due	89
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	89
Consumer Real Estate [Member] | Equity Lines [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	22
90 or More Days Past Due	30
90 or More Days Past Due and Still Accruing	30
Nonaccruals (Including Impaired Nonaccruals)	98
Consumer Real Estate [Member] | Equity Lines [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Consumer Real Estate [Member] | Residential Closed end First Liens [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	1,507
90 or More Days Past Due	605
90 or More Days Past Due and Still Accruing	126
Nonaccruals (Including Impaired Nonaccruals)	801
Consumer Real Estate [Member] | Residential Closed end Junior Liens [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	121
90 or More Days Past Due	39
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	120
Consumer Real Estate [Member] | Consumer Construction [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Consumer Real Estate [Member] | Closed end Consumer Real Estate [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		1,735	[1]
90 or More Days Past Due		658	[1]
90 or More Days Past Due and Still Accruing		346	[1]
Nonaccruals (Including Impaired Nonaccruals)		313	[1]
Commercial Real Estate [Member] | Multifamily Real Estate [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	671
90 or More Days Past Due	261
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	4,624
Commercial Real Estate [Member] | Multifamily Real Estate [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	4,202
90 or More Days Past Due	261
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	1,093
Commercial Real Estate [Member] | Commercial Real Estate, Owner Occupied [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	1,113
90 or More Days Past Due	0
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	3,536
Commercial Real Estate [Member] | Commercial Real Estate, Owner Occupied [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	1,113
90 or More Days Past Due	0
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	2,785
Commercial Real Estate [Member] | Commercial Real Estate, Other [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	40
90 or More Days Past Due	2,089
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	0
Commercial Real Estate [Member] | Commercial Real Estate, Other [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		815	[1]
90 or More Days Past Due		488	[1]
90 or More Days Past Due and Still Accruing		63	[1]
Nonaccruals (Including Impaired Nonaccruals)		1,112	[1]
Commercial Real Estate [Member] | College Housing [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		452	[1]
90 or More Days Past Due		250	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		250	[1]
Commercial Real Estate [Member] | Convenience Stores [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Religious Organizations [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Restaurants [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Office and Retail [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Hotels [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		616	[1]
90 or More Days Past Due		526	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		1,397	[1]
Commercial Real Estate [Member] | Municipalities [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Nonprofits [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Nursing Homes [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Entertainment and Sports [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | Medical Professionals [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Commercial Real Estate [Member] | General Contractors [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		103	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		703	[1]
Commercial Non Real Estate [Member] | Commercial and Industrial [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	291
90 or More Days Past Due	505
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	561
Commercial Non Real Estate [Member] | Commercial and Industrial [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	347
90 or More Days Past Due	505
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	505
Public Sector and IDA [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	0
90 or More Days Past Due	0
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	0
Consumer Non Real Estate [Member] | Credit Cards [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	20
90 or More Days Past Due	4
90 or More Days Past Due and Still Accruing	4
Nonaccruals (Including Impaired Nonaccruals)	0
Consumer Non Real Estate [Member] | Credit Cards [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		26	[1]
90 or More Days Past Due		8	[1]
90 or More Days Past Due and Still Accruing		8	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Consumer Non Real Estate [Member] | Automobile [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	142
90 or More Days Past Due	10
90 or More Days Past Due and Still Accruing	10
Nonaccruals (Including Impaired Nonaccruals)	49
Consumer Non Real Estate [Member] | Automobile [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	142
90 or More Days Past Due	10
90 or More Days Past Due and Still Accruing	10
Nonaccruals (Including Impaired Nonaccruals)	3
Consumer Non Real Estate [Member] | Other Consumer Loans [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due	132
90 or More Days Past Due	0
90 or More Days Past Due and Still Accruing	0
Nonaccruals (Including Impaired Nonaccruals)	0
Consumer Non Real Estate [Member] | Consumer General [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		270	[1]
90 or More Days Past Due		38	[1]
90 or More Days Past Due and Still Accruing		38	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Consumer Non Real Estate [Member] | Consumer Overdraft [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Construction Development and Other land [Member] | Commercial [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		252	[1]
90 or More Days Past Due		0	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		0	[1]
Construction Development and Other land [Member] | Residential [Member] | Scenario, Previously Reported [Member]
Financing receivable recorded investment, past due [Abstract]
30 To 89 Days Past Due		0	[1]
90 or More Days Past Due		1,290	[1]
90 or More Days Past Due and Still Accruing		0	[1]
Nonaccruals (Including Impaired Nonaccruals)		$ 1,290	[1]

[1] Segments and classes at December 31, 2011 are reported using the segmentation method in effect for 2011. The Company began reporting under revised segments beginning in 2012.