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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Non-accrual Loans) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | $ 15,855 | $ 14,122 |
Foreclosed properties, net | 333 | 1,574 | 2,236
Total non-performing assets | 16,188 | 15,696 |
Performing troubled debt restructurings | 371 | 1,105 |
Total impaired assets | 16,559 | 16,801 |
Total non-accrual loans and leases to gross loans and leases | 1.61% | 1.55% |
Total non-performing assets to total gross loans and leases plus foreclosed properties, net | 1.65% | 1.72% |
Total non-performing assets to total assets | 1.28% | 1.28% |
Allowance for loan and lease losses to gross loans and leases | 1.42% | 1.69% |
Allowance for loan and lease losses to non-accrual loans and leases | 87.68% | 109.05% |
Commercial real estate — owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 339 | 769 |
Commercial real estate — non-owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 283 | 2,871 |
Construction and land development |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 5,422 | 4,946 |
Multi-family |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 31 | 46 |
1-4 family |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 521 | 1,006 |
Total commercial real estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 6,596 | 9,638 |
Allowance for loan and lease losses to gross loans and leases | 1.40% | 1.71% |
Commercial & industrial |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 8,011 | 2,842 |
Allowance for loan and lease losses to gross loans and leases | 1.44% | 1.61% |
Direct financing leases, net |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 0 | 0 |
Allowance for loan and lease losses to gross loans and leases | 1.30% | 1.30% |
Home equity and second mortgages |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 453 | 612 |
Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | 795 | 1,030 |
Total consumer and other loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Non-accruing loans and leases | $ 1,248 | $ 1,642 |
Allowance for loan and lease losses to gross loans and leases | 1.58% | 2.27% |

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