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Allowance for Loan Losses, Nonperforming Assets and Impaired Loans, Non-impaired Loans by Credit Quality Indicator (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items] |  |
Threshold period for considering loans as special mention or classified | 75 days |
Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | $ 541,463 | $ 564,331
Pass [Member] | Real Estate Construction [Member] | Construction, 1-4 Family Residential [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 15,993 | 14,344
Pass [Member] | Real Estate Construction [Member] | Construction, Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 28,154 | 29,011
Pass [Member] | Consumer Real Estate [Member] | Equity Lines [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 17,462 | 17,742
Pass [Member] | Consumer Real Estate [Member] | Closed-end First Liens [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 75,434 | 113,893
Pass [Member] | Consumer Real Estate [Member] | Closed-end Junior Liens [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 5,410 | 6,713
Pass [Member] | Consumer Real Estate [Member] | Investor-owned residential real estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 37,027 |
Pass [Member] | Commercial Real Estate [Member] | Commercial Real Estate, Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 93,264 | 92,628
Pass [Member] | Commercial Real Estate [Member] | Commercial Real Estate, Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 144,248 | 160,188
Pass [Member] | Commercial Real Estate [Member] | Multifamily Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 35,328 | 36,421
Pass [Member] | Commercial Non Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 34,725 | 36,372
Pass [Member] | Public Sector and IDA [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 26,686 | 26,170
Pass [Member] | Consumer Non Real Estate [Member] | Automobile [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 12,171 | 12,344
Pass [Member] | Consumer Non Real Estate [Member] | Other Consumer [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 9,269 | 11,815
Pass [Member] | Consumer Non Real Estate [Member] | Credit Cards [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 6,292 | 6,690
Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Increase in percentage of allocation for internal and external factors used for estimating credit risk for non-impaired loans (in hundredths) | 50.00% |
Non-impaired loans | 10,295 | 4,639
Special Mention [Member] | Real Estate Construction [Member] | Construction, 1-4 Family Residential [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 158 | 158
Special Mention [Member] | Real Estate Construction [Member] | Construction, Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 6,086 | 0
Special Mention [Member] | Consumer Real Estate [Member] | Equity Lines [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 0 | 100
Special Mention [Member] | Consumer Real Estate [Member] | Closed-end First Liens [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 283 | 652
Special Mention [Member] | Consumer Real Estate [Member] | Closed-end Junior Liens [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 116 | 119
Special Mention [Member] | Consumer Real Estate [Member] | Investor-owned residential real estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 48 |
Special Mention [Member] | Commercial Real Estate [Member] | Commercial Real Estate, Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 3,092 | 3,112
Special Mention [Member] | Commercial Real Estate [Member] | Commercial Real Estate, Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 215 | 253
Special Mention [Member] | Commercial Real Estate [Member] | Multifamily Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 0 | 0
Special Mention [Member] | Commercial Non Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 151 | 99
Special Mention [Member] | Public Sector and IDA [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 0 | 0
Special Mention [Member] | Consumer Non Real Estate [Member] | Automobile [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 122 | 101
Special Mention [Member] | Consumer Non Real Estate [Member] | Other Consumer [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 24 | 45
Special Mention [Member] | Consumer Non Real Estate [Member] | Credit Cards [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 0 | 0
Classified (Excluding Impaired) [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Increase in percentage of allocation for internal and external factors used for estimating credit risk for non-impaired loans (in hundredths) | 100.00% |
Non-impaired loans | 5,942 | 4,735
Classified (Excluding Impaired) [Member] | Real Estate Construction [Member] | Construction, 1-4 Family Residential [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 0 | 0
Classified (Excluding Impaired) [Member] | Real Estate Construction [Member] | Construction, Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 30 | 120
Classified (Excluding Impaired) [Member] | Consumer Real Estate [Member] | Equity Lines [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 84 | 182
Classified (Excluding Impaired) [Member] | Consumer Real Estate [Member] | Closed-end First Liens [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 2,739 | 2,413
Classified (Excluding Impaired) [Member] | Consumer Real Estate [Member] | Closed-end Junior Liens [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 143 | 138
Classified (Excluding Impaired) [Member] | Consumer Real Estate [Member] | Investor-owned residential real estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 48 |
Classified (Excluding Impaired) [Member] | Commercial Real Estate [Member] | Commercial Real Estate, Other [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 0 | 0
Classified (Excluding Impaired) [Member] | Commercial Real Estate [Member] | Commercial Real Estate, Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 1,239 | 1,079
Classified (Excluding Impaired) [Member] | Commercial Real Estate [Member] | Multifamily Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 1,178 | 324
Classified (Excluding Impaired) [Member] | Commercial Non Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 298 | 318
Classified (Excluding Impaired) [Member] | Public Sector and IDA [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 0 | 0
Classified (Excluding Impaired) [Member] | Consumer Non Real Estate [Member] | Automobile [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 115 | 56
Classified (Excluding Impaired) [Member] | Consumer Non Real Estate [Member] | Other Consumer [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | 68 | 105
Classified (Excluding Impaired) [Member] | Consumer Non Real Estate [Member] | Credit Cards [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired loans | $ 0 | $ 0

X
- Definition Refers to increase in percentage of allocation for internal and external factors used for estimating credit risk for non-impaired loans. + References No definition available. + Details
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